Task: Question Answering
Input (English): Question: It costs Rs. x each to make the first thousand copies of a compact disk and Rs. y to make each subsequent copy. If z is greater than 1,000, how many Rupees will it cost to make z copies of the compact disk?

 Option A: 1000 x + yz

 Option B: zx - zy

 Option C: 1000 (z - x

 Option D: 1000 (z - y

 Option E: 1000 (x- y
Output (English): Option E