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: during the first two weeks of january, the total rainfall in springdale was 20 inches. if the rainfall during the second week was 1.5 times the rainfall during the first week, what was the rainfall during the second week of january ?
Options: a. 5 inches, b. 6 inches, c. 9 inches, d. 10 inches, e. 12 inches
A:
e