听力原文：M1: Jack, when you are done with the paper, can I read it？ I need to check someth

M2: Here, you can take it, Peter. I'm done with it. Oh, by the way, how is Carol working out in her new position？ I was talking to her earlier, and she seems to have lost a lot of her confidence since she took on her new position.

M1: Really？ I don't understand why you would feel that way because as far as I am concerned, she is doing a great job. In fact, I was really happy with the result of the first project she took on since joining my team.

M2: That's good to hear. I was worried that she might not be performing at her best since she's around people that she does not know very well yet.

What are they talking about？

A．Jack's promotion to a managerial position.

B．How a co-worker is adjusting to a new position.

C．What to do about one of the team members who is not doing a good job.

D．Where to place a shy worker who is new to the company.