Question

a process that increases frost resistance in the winter, starch hydrolysis, meaning the conversion of starch stores to sugar, also gives carrots a sweeter taste.
choose 1 answer:
a no change
b sugar, after being converted from starch stores via starch hydrolysis, also gives carrots a sweeter taste.
c carrots also have a sweeter taste due to starch hydrolysis, the conversion of starch stores to sugar.
d the sweeter taste of carrots also results from starch hydrolysis, the conversion of starch stores to sugar.

Explanation:

We need to check the logical consistency and clarity of each option. The original sentence has a modifier issue. Option D correctly structures the sentence: the main subject is "the sweeter taste of carrots", and "starch hydrolysis, the conversion of starch stores to sugar" is a clear appositive explaining the process. Option A has a confusing modifier. Option B shifts the subject to "sugar" which is illogical. Option C has a comma splice error.

Answer:

D. the sweeter taste of carrots also results from starch hydrolysis, the conversion of starch stores to sugar.