I don't have to see people.
Answer: he is asking his father to let him leave.
Explanation:
I took the quiz
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.
Pretty sure it's B I don't remember the proper rules of commas and the word "and" but it's either A or B
If you are trying to shorten that, it can be written like this; "My parents and the vet told me about different types of dogs."