Question 1: A, B, D

Question 2: A, B, D

Question 3: C, D

Question 4: D, E

Question 5: A, B

Question 6: A, C

Question 7: A, C, E

Question 8: A, B, C, D

Question 9: B, C, D, E

Question 10: A, B, E

Question 11: A, B, D, E

Question 12: A, D

Question 13: A, C

Question 14: A, D, E

Question 15: B, C, D, E

Question 16: B, C, D, E

Question 17: B

Question 18: C

Question 19: A

Question 20: C