Task: Question Answering
Input (English): Question: A man can buy a new house in 4 years with all of his earnings. But he spend the same amount in household expenses in 8 years and for savings in 12 years. How many time needed for buying the house?

 Option A: 12

 Option B: 20

 Option C: 30

 Option D: 15

 Option E: 24
Output (English): Option E