Task: Question Answering
Input (English): Problem: a collection of books went on sale, and 2 / 3 of them were sold for $ 2.25 each. if none of the 40 remaining books were sold, what was the total amount received for the books that were sold ?
Options: a. $ 160, b. $ 150, c. $ 280, d. $ 200, e. $ 180
Output (English): e