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

Question 13:

a. Tom: I think it would be too expensive.

b. Tom: What's the best way to stop global warming?

c. Liz: Hmm. I'm not sure. Is switching to solar power a good idea?

(Adapted from i-Learn Smart World)