A or b because they have a simple answering that makes sense
The adverb modifies the verb, but is not an object of the verb.
The object here, what John said is "a very lively Broadway show". (which contains options a,b and d, and leaves c as the correct answer).
But i would say that there is not "an adverb" but an adverbial phrase "last year" - both these words are needed to form the phrase
This statement is True.
Dictionaries are considered a resource allowed in an open book test.
Hope this helps!