In each question, there are five sentences. Each sentence has a pair of words that is italicized and highlighted. From the italicized and highlighted words, select the most appropriate words (A or B) to form correct sentences. The sentences are followed by options that indicate the words, which may be selected to correctly complete the set of sentences. From the options given, choose the most appropriate one.
She managed to bite back the ironic(A)/caustic(B) retort on the tip of her tongue.
He gave an impassioned and valid(A)/cogent(B) plea for judicial reform.
I am not adverse(A)/averse(B) to helping out.
The coupé(A)/coup(B) broke away as the train climbed the hill.
They heard the bells peeling(A)/pealing(B) far and wide.