Task: Question Answering
Input (English): Question: The list price of a watch is 160. A retailer bought the same watch 122.40. He got two successive discounts one at 10% and the other at a rate which was not legible. What is the second discount rate?

 Option A: 12%

 Option B: 14%

 Option C: 15%

 Option D: 18%

 Option E: None of these
Output (English): Option C