Task: Question Answering
Input (English): Problem: carl is facing very difficult financial times and can only pay the interest on a $ 10,000 loan he has taken. the bank charges him a quarterly compound rate of 4 %. what is the approximate interest he pays annually ?
Options: a. $ 1750, b. $ 2000, c. $ 2150, d. $ 2500, e. $ 12000
Output (English): a