Read the rough-draft paragraph. Which topic sentence should be added to this body paragraph? Since popcorn is a whole grain, it is high in dietary fiber, which helps in the regulation and maintenance of the digestive system. To maximize the healthful benefits of eating popcorn, be sure to only munch on either air- popped popcom or kernels that have been popped using little oil. In addition to providing dietary fiber, popcorn is also a source of antioxidants. This means that like fruits and vegetables, popcorn contains compounds that can reduce or prevent certain cancers. So, not only is popcorn a tasty treat, it is also a nutritional powerhouse. Foods loaded with fiber have been known to lower ti risk of heart disease. Recent studies prove that popcorn is one of the healthiest snack choices. Antioxidants are sought after by many health- conscious people. Air-popping and microwaving are two methods of preparing popcorn..

"Topic sentence" is described as the sentence that functions to convey the major idea of the para in a condensed form.
In the given paragraph, the sentence 'Recent studies...choices' would most adequately function as the topic sentence.
The reason behind this is that it offers a summary of the key idea provided in the paragraph that the latest studies display popcorn as a healthy snack.

Thus, option B is the correct answer.

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