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. Lena: That sounds terrible! Have you tried recovering the files?
b. Tom: Oh, I've been dealing with a big problem at work. My computer crashed, and I lost all my files.
c. Lena: Hey, Tom! Why do you look so tired today?
d. Lena: Good idea. Hopefully, they can restore everything for you.
e. Tom: I've tried, but nothing seems to work. I think I might have to contact IT for help.