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 or text in each of the following questions from 13 to 17.

a. Doctor: It sounds uncomfortable. Based on what you've described, I'd recommend taking it easy for a few days and staying hydrated.
b. Patient: I've been feeling quite tired, and my throat has been sore for the past few days.
c. Doctor: Could you tell me about your symptoms?