Who of the following is NOT a peer? A. your lab partner in science class
b. your cousin who is the same age as you
C. Your older brother's best friend
d. your best friend from your class at school

A)

Explanation:

You don't seem to have any ties with that person. The only similarity you have is that you're in the same science class.

Your older brothers best friend. This is because a peer is "both a social group and a primary group of people who have similar interests, age, background, or social status" So your older brother, is well older, and so is his firend. this means that they are not a peer

Hope that helps!!

Have a great day :)

an era of negotiation.

is that an answer to your question?