Task: Question Answering
Input (English): Question: A man purchases 2 watches for $ 600. He sells one at 15% profit and the other at a loss of 10%. He neither gains nor loses on the whole. Thus, the cost price of two watches are :

 Option A: $ 260 and $ 300

 Option B: $210 and $ 350

 Option C: $240 and $360

 Option D: $560 and $560

 Option E: $224 and $ 350
Output (English): Option C