Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Problem: a parking garage rents parking spaces for $ 10 per week or $ 25 per month. how much does a person save in a year by renting by the month rather than by the week ?
Options: a. $ 120, b. $ 160, c. $ 220, d. $ 240, e. $ 260
Student:
a