Answer: Listener
Explanation:
Listener apprehension is the feeling in which fear of misinterpretation, misapprehension,misunderstanding,misconstruction etc can take place towards the spoken message from someone else. To overcome this fear correct message summarizing and listening with concentration is important.
According top the question, Carly's action s are suggesting listener apprehension as she is scared that she might misunderstand message given by speaker and so she is making notes of given speech at presentation.