You need to put the dialogue
The abreviation after a word in a dictionary tell you what part of speech the word is. Such as noun (n), pronoun (pron), adjective (adj), adverb (adv), verb (vb), conjunction (conj), preposition (prep), or interjection (interj).
I believe it's D, because without "(especially the corn)" its a complete sentence that still makes sense.
are there choices? because the best one should be devising a training program that builds muscle mass slowly. Slowly building your muscle mass helps you build up your strength without hurting yourself. I believe if there are A,B,C,and D. its B. because i saw this question before. the answer is B. or what i previously said.