Task: Question Answering
Input (English): Problem: a collection of books went on sale, and 2 / 3 of them were sold for $ 4.25 each. if none of the 30 remaining books were sold, what was the total amount received for the books that were sold ?
Options: a. $ 260, b. $ 255, c. $ 285, d. $ 290, e. $ 275
Output (English): b