Task: Question Answering
Input (English): Question: Gold is 19 times as heavy as water and copper is 9 times as heavy as water. In what ratio should these be mixed to get an alloy 15 times as heavy as water ?

 Option A: 3 : 2

 Option B: 3 : 8

 Option C: 5 : 7

 Option D: 3 : 7

 Option E: 3 : 6
Output (English): Option A