B - agenda
An agenda is what the author really wants to point out (their underlying message) and it's typically written in a way where it's somewhat hidden. Example: political ads - they have an agenda for what they want to talk about and why it's important.
The phrase in the excerpt from a 1964 interview with Malcolm X indicates that he is explicitly stating an opinion is this "<span>{I don't think that it} serves any purpose for the {leaders of our people} to waste their time fighting each other needlessly."</span>
Adverbs modify (describe) verbs or other adverbs and often end in -ly. You need to locate the verb to determine at least one of the adverbs (the action of the sentence.) This is a complex sentence because it has an independent clause (it was not exactly what he had in mind) and a subordinate clause (when he agreed to do the task). If you just look at the independent clause, or the one that can stand by itself, you will find the verb 'was'. Ask yourself 'was what'. The answer is not, which means it is the adverb. To find the adverb describing it, we again ask, 'not what'. The answer is exactly. So the answer is A.
Cappella music is always played with the voices of one singer or others without musical instruments accompanying them. I hope this helps!
