Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange of text in each of the following questions from 13 to 17.

a. Lisa: Oh, I see. Make sure to rest well, too. You don't want to get sick.
b. Lisa: Hi, Tom! You look a bit tired. Are you okay?
c. Tom: Hey, Lisa. Yeah, I’ve been staying up late to study for my final exams.