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: ravi purchased a refrigerator and a mobile phone for rs. 15000 and rs. 8000 respectively. he sold the refrigerator at a loss of 2 percent and the mobile phone at a profit of 10 percent. overall he make a.
Options: a. 228, b. 288, c. 500, d. 200, e. 881
A:
c