M: How long do you think it will take us to complete the walk? ,F: 42 minutes in all, including a 20 minutes break.
(A) M: I didn’t hear you. Please could you tell me again? (B) M: I agree with you. It will take us 42 minutes in all, including a 20 minutes break. So we will spend 22 mintues in completing the walk. (C) M: Yeah, as we have no break, it will take us 22 mintues to complete the walk. (D) M:  Yeah, I also think without any break, it will take us 42 minutes to complete the drive.
B