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