Answer:
C) Strutted
Vivid - producing powerful feelings or strong, clear images in the mind
Strutted gives you the feel of proud, chest out, and bragging with the sentence, and it is the most clear to use
Answer:
Angelic Doctor no hate if I am wrong :)
Even though the sentence looks fine, in order to make it more correct you should avoid using a subordinate clause as predicate nominative.
So, instead of saying The climax of the event was when we ordered pizza, it may be better to say The climax of the event was ordering pizza.
An adverb.
A verb is an action word
An adjective is descreptive
A noun is a person, place or thing
Therefore the answer is an adverb