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