Task: Question Answering
Input (English): Question: A tank can supply water to a village for 100 days. If a leak at the bottom of the tank drains out 10 liters per day, the supply lasts for 75 days only. For how many days will the supply last if the leak drains out 20 liters per day?

 Option A: 50

 Option B: 60

 Option C: 65

 Option D: 70

 Option E: 72
Output (English): Option B