Task: Question Answering
Input (English): Question: The ratio of the number of ladies to gents at a party was 1:2 but when 2 ladies and 2 gents left, the ratio became 1:3. How many people were at the party originally?

 Option A: 278

 Option B: 29

 Option C: 12

 Option D: 17

 Option E: 10
Output (English): Option C