Answer:
Claire is likely to experience an internal noise.
Step-by-step explanation:
It is common when you are talking to someone or when your are listening to something that your mind flies to another place. It is called internal noise and is very common in communication. In this especific case, Claire is trying to concentrated on her history professor´s lecture but an internal noise (her plans fot the upcoming weekend) doesn´t let her to keep focus on that.