Question 16 - 18 refer to following conversation:
W-Br: Mehdi, I've been working on the design for the new library. I put the floor plans on your desk this morning. Did you have a chance to look at them?
M-Cn: Yes, I like what you did, but there's one problem. In your plan, the computer lab is located on the second floor, and I thought it was supposed to be on the first floor next to the elevator.
W-Br: That was the original idea, but I believe the library director wanted that room moved upstairs so that we'd have space to make the lobby bigger.
M-Cn: We'd better check on that; I'll call the director this afternoon just to make sure.
16. What are the speakers discussing?