I think it will be A.classmates;to persuade that will be the answer.
Answer:
:)
Explanation:
What are your answers, so that I can compare?
Given the fact that the only preposition in this sentence is 'around', the correct answer is definitely C. 'Around' is the preposition, and 'boat' is the object of the preposition, that is, the noun that follows the preposition.
