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.
Problem:Problem: if the dimensions of a certain rectangular box are 5 inches by 2 inches by 3 inches, then the face of greatest area is of what area ?
Options: ['a. 225 square inches', 'b. 45 square inches', 'c. 25 square inches', 'd. 15 square inches', 'e. 10 square inches']
Solution:
d