Task: Question Answering
Input (English): Question: A bookshop had science and art books in the ratio of 2:5. By the end of the week, 20% of both type of books were sold and 2240 books were unsold. How many art books were there at the starting?

 Option A: 1355

 Option B: 1350

 Option C: 1450

 Option D: 1600

 Option E: 2000
Output (English): Option E