I would be more than willing to help with a favorite memory. These are some of the most creative writing projects Ive ever done.
Answer: The best meaning of "affinity" is an enjoyment of.
Explanation: Meaning represents something's intent or purpose. That can be a book, a conversation, a television show or a sentence like in the example of "affinity", where you try to figure out the author's intended meaning by interpreting the words.
The pronoun needs to agree with the subject. So clearly "A. We" doesn't work in this sentence... The answer is "B." since the subject is about the author... So the sentence should look like this: "My little brother threw the ball toward Steve and I"