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.

1. David: There was a session on solar energy innovations that blew my mind. The advancements in efficiency are incredible.
2. Sarah: That’s great! What was the most interesting topic discussed?
3. David: I attended a conference on renewable energy last week. It was eye-opening.
4. David: Yes, I made some great connections. I even talked to a few industry experts about potential collaborations.
5. Sarah: I can imagine! Did you meet any interesting people at the conference?