Improving Passage
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  The following passage discusses a study that 
  examined the effects of drinking wine.
                (1) Many experts of the physiological effects 
  of alcoholic beverages have assumed that the only active 
  ingredient in wine, like liquor and beer, is alcohol. (2) 
  Furthermore, experts of the physiological effects of 
  alcoholic beverages have rarely considered the ways in 
  which the effects of wine are different than those of other 
  alcoholic beverages. (3) Wine encompassing grape based 
  fermented beverages only and not from other ingredients.
  (4) While making no distinction between wine, beer and 
  liquor and while focusing the majority of their research on 
  the excessive or abusive intake of these beverages, these 
  experts have obscured the healthful effects of wine that 
  have been discovered in recent studies.
               (5) It is undoubtedly true that most alcoholic 
  beverages have negative physiological effects. (6) For
  example, alcohol is known to raise the body’s level of 
  lipids (fats, cholesterol, waxes, sterols, etc.), which play a 
  considerable role in the development of premature heart 
  disease. (7) But a recent group of scientists has found 
  several non-harmful effects of moderate wine consumption
  In particular, they found that alcohol enters the 
  bloodstream much slower when individuals drink wine 
  than when they drink equal qualities of beer or liquor. (8)
  In addition, it was also discovered that the rate of death 
  from premature heart disease in Europe dropped 
  significantly as the rate of moderate wine consumption 
  increased. (9) Skeptics have pointed out other factors,
  such as increasing levels of exercise and improvements in 
  medical technology, to account for this phenomenon, but
  their arguments cannot explain why the rates of death from 
  premature heart disease have fallen in other areas of high 
  wine consumption that have below average levels of 
  physical fitness and medical technology.
              (10) What could account for the apparently
  healthful effects of wine? For one, the scientists have 
  discovered that wine contains a natural clot-breaking 
  compound that doctors commonly use to improve blood 
  flow through clogged blood vessels. (11) Their studies 
  have also shown that wine contains compounds that 
  counteract the harmful effects of high lipid levels. (12) 
  Because many studies have found lipid processing to be
  the weightiest contributing factor in occurrences of 
  premature heart disease, the lipid-regulating components 
  of wine are gaining widespread attention in the field of 
  cardiac medicine.
              (13) Meanwhile, the scientists have discovered
  other effects of wine that improve cardiac heath. (14) 
  Their studies show that wine not only decreases the
  thickness of the innermost walls of blood vessels, but also 
  reduces the formation of blood clots by reducing platelet 
  adhesiveness. (15) This finding is similar to the results of 
  another study that deemed grape juice a tonic that
  decreases platelet adhesiveness. (16) This may explain   
  why non-grape alcoholic beverages do not have similar
  effects as wine on blood vessel thickness or platelet 
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In context, which of the following is the best version of the underlined portion of sentence 2(reproduced below)?


Furthermore, experts of the physiological effects of alcoholic beverages have rarely considered the ways in which the effects of wine are different than those of other alcoholic beverages.

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