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: 10 x 0.5 = ?
Options: a. 0.0001, b. 0.001, c. 0.01, d. 0.1, e. 5
A:
e