Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of sentences to make a meaningful exchange or text in each of the following questions from 30 to 34.

a. Sue: Good ideas! I’ll keep that in mind. Thanks!
b. Ben: I think we should avoid taking souvenirs like stones, and wear flat shoes with soft soles to prevent damage.
c. Sue: I visited the castle yesterday. It’s nice, but no one looks after it. What can we do to protect it?