A. If you need a basketball, you can borrow our's.
It connects the viewpoints of you and the viewpoints of others. And wraps it in the arguments.
Hope this helped :)
The function of the infinitive phrase in the sentence <em>To win a marathon is my goal </em>is object of the verb.
It is definitely an object, and it would follow a verb if it were a normal ordering of words in the sentence (My goal is to win a marathon), and since it is not preceded by a preposition, it cannot be object of the preposition, but of a verb.