1 a
2 c
3 c
4 a
5 b
6 d
7 b
8 a
9 a
10 a
11 b
12 d
13 c
14 c
15 c
16 a
17 b
18 d
19 d
20 a
21 a
22 a
23 a
24 d
25 d