Ok, I think this is the key. Sorry about some duplicates.
1-C, 2-A, 3-D, 4-A, 5-A, 6-D,
7-B, 8-B, 9-B, 10-B, 11-D,
12-D, 13-A,
14-B, 15-D, 16-C, 17-A,
18-A, 19-C, 20-D, 21-B, 22-B, 23-C, 24-A, 25-A,
26-B, 27-A, 28-C, 29-B,
30-B, 31-B, 32-D, 33-A, 34-D,
35-B, 36-D, 37-C, 38-B,
39-C, 40-C, 41-C, 42-A, 43-D, 44-B,
45-C, 46-A, 47-C, 48-B, 49-D,
50-C.
Email me or AIM text me if you think any of these is incorrect.
Unfortunately I will not be able to hold any office hours on Tuesday. I have an exam at 10:15. If you really really need some help, come by my classroom (130 Keith Hall) AFTER 11:15 (when there are likely fewer people in the auditorium) and I should be able to help you. If you stop by Keith Hall and I'm not there, it means that exam is over and I'm back in the office. You're welcome to stop by but it seems there are always some who will take the entire two hours, leaving me with only 15 minutes between exams.
Thanks for understanding.