I believe the sentence is too vague.
Answer:
i like it. its something people need to understand because theres a diffrence. i t makes sense to me so im pretty sure whoever your sending it to will understand it. good stuff dude
Explanation:
The correct answer among the choices is option D. The word "swiftly", which is italicized in the example, is an adverb. An adverb modifies a verb, an adjective or other adverbs. In the sentence, the verb modified is swim which is a verb.
It's called a metaphor! :)