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. Mark: That’s great! What changes have you made so far?
b. Anna: Yes, I’ve been taking shorter showers and fixing leaky faucets to save water.
c. Anna: I’ve been trying to live a more sustainable life lately.
d. Mark: That’s a good start! Have you thought about reducing your water usage too?
e. Anna: I started using reusable bags and switched to energy-efficient light bulbs.