1. b
2 a
3. b
4 d
5c
6 d
7a
8d
9c
10 c
11d
12 b
13b
14d
15 d
16b
17a
18c
19b
20d
21a
22a
23b
24a
25c
26a
27c
28a
2929d
30a
31d
32a
33d
34b
35c
36b
37a
38c
39b
40c
41c
42c
43c
45d
46c
47a
48d
49c
50c