Task: Question Answering
Input (English): Question: In a LAB experiment, a 100 ml compound of element X and element Y needs to be increased to 300 ml by adding some quantity of element X, and some quantity of element Y. If the original compound contains 40% of element X, how much (in ml) of element Y must be added so that element X will be exactly one third of the resulting mixture ?

 Option A: 40 ml

 Option B: 100/3 ml

 Option C: 140 ml

 Option D: 20/3 ml

 Option E: 10 ml
Output (English): Option C