the answer u are looking for is c. assonance
the best revision of the modifier "badly" in the sentence 5 is "bad" : she felt bad that someone had lost such a nice watch. the word badly is an adverb, the word that modifies other words and verbs: badly made furniture ; she was treated very badly. in this sentence (modified), the word bad is an adjective that follows a linking verb "felt."
it is i believe 50% plural
a,b, and c hope this