Task: Question Answering
Input (English): Question: In store A there are 10 pairs of pants for every 50 store B has. The price ratio between the pants in store B and the pants in store A is 3:4. If all the pants were sold in both places until the stock ran out, what is the ratio between the total amount stores A earned to the total amount store B earned?

 Option A: 4:15.

 Option B: 2:3.

 Option C: 1:3.

 Option D: 3:4.

 Option E: 2:5.
Output (English): Option A