... 1. A 2. E 3. C 4. E 5. A 6. C 7. E 8. A 9. B10. B11. D 12. E13. A 14. C15. A16. B17. E18. D19. A 20 . E 21 . C 22 . D 23 . E 24 . D 25 . E 26 . A 27 . A 28 . D 29 . C30. C31. A 32. A33. ... A33. D 34. D35. D36. E37. C38. C39. C 40 . C 41 . E 42 . C 43 . A 44 . E 45 . C 46 . D 47 . B 48 . B 49 . A50. D51. B 52. C53. B 54. A55. A56. E57. E58. D59. A60. D61. D 62. A63. C 64. C65. ... light. II. The beam is below threshold.III. The beam does not contain anyphotons.(A) I only(B) II only(C) I and III only(D) II and III only(E) I, II, and III 20 . A rescue plane flying at 162...