You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.
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Question: Question: Sam is training for the marathon. He drove 12 miles from his home to the Grey Hills Park and then ran 5 miles to Red Rock, retraced his path back for 2 miles, and then ran 3 miles to Rock Creek. If he is then n miles from home, what is the range of possible values for n?

Option A: 1 n 23

Option B: 3 n 21

Option C: 6 n 18

Option D: 5 n 19

Option E: 9 n 15

Answer: Option C

Question: Question: Two dice are tossed. The probability that the total score is a prime number is:

Option A: 5/5

Option B: 5/9

Option C: 5/1

Option D: 5/7

Option E: 5/12

Answer: Option E

Question: Question: On final examination a student's average (arithmetic mean) score on 4 subjects is 90. What must be his score on a 5th subject for his average score on the 5 subjects to be 92?

Option A: 60

Option B: 70

Option C: 80

Option D: 90

Option E: 100

Answer:
Option E