Given a math problem with context and a question and 5 answer choices, the task is to provide the correct answer choice based on the problem. You must choose one of the given answer choices by letter: a, b, c, d, or e; anything else is invalid.

Q: Problem: how many integers v are prime numbers in the range 200 < v < 220 ?
Options: a. 1, b. 2, c. 3, d. 4, e. 5

A: a
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Q: Problem: one side of a rectangular field is 14 m and one of its diagonal is 17 m. find the area of the field.
Options: a. 134.4, b. 120, c. 150, d. 180, e. none

A: a
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Q: Problem: there is a 10 % chance that tigers will not win at all during the whole season. there is a 20 % chance that federer will not play at all in the whole season. what is the greatest possible probability that the tigers will win and federer will play during the season ?
Options: a. 55 %, b. 60 %, c. 70 %, d. 72 %, e. 80 %

A:
e
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