After analyzing the punctuation and the transitions in each sentence, we can select the one that correctly uses a comma as the following:
A. On the other hand, grapes that are picked in the fall are usually sweeter and juicier than those picked in the summer.
<h3>What are transitions?</h3>
Transitions are words or phrases that help connect ideas inside the structure of a text. Transitions can be used for different purposes, for instance:
In the sentence we are analyzing here, the transition is the phrase "on the other hand," which is used to indicate contrast. This phrase should be set off by commas, which means letter A is the correct option.
Learn more about transitions here:
brainly.com/question/15314396
