Detailed Instructions: 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: set x consists of all two - digit primes and set y consists of all positive even multiples of 5 less than 100. if the two sets are combined into one, what will be the range of the new set ?
Options: a. 87, b. 89, c. 90, d. 92, e. 95
A:
a