Joint social attention refers to the ability to

A. communicate with two people at the same time.
B. coordinate one’s focus of attention on another person and an object of
mutual interest.
C. hold a conversation on two different topics.
D. pay attention to the conversation that two other people are having.

I think its B!

I agree.

You are correct, the answer is B. Joint social attention refers to the ability to coordinate one's focus of attention on another person and an object of mutual interest. This means that when two or more individuals share attention on the same object or event, they are engaging in joint social attention. For example, if two people are looking at and talking about a painting together, they are demonstrating joint social attention. To arrive at this answer, you may have eliminated the other options as they were not directly related to the concept of joint social attention.