Answer:
B. to help the audience understand
Explanation:
hope this helps!
Linking<span> verbs never express action. Instead, they connect the subject of the </span>verb<span> to a noun or an adjective that either renames or describes the noun, pronoun or noun phrase that acts as the subject. From the sentence given, I think there is no linking verb. Hope this helps.</span>
I think nothing is impossible, the word impossible itself says i am possible.