Answer is C , when you actually listen to the person it saves to,e for them because they don't really have to go over it again ; and for you , you don't have to sit there confused or have to ask for more help . Good luck <3
C both of you. The answer would be both of you because not only do you not have to ask the speaker to repeat themselves, but the speaker does not have to change directions and go back to repeat themselves.
