Task: Question Answering
Input (English): Problem: buffalo gives 4 liter milk, cow gives ( 1 / 2 ) liter milk and goat gives 1 / 4 liter milk. you have to get 20 liter milk by 20 animals. what is the number of goats ?
Options: a. 1, b. 2, c. 3, d. 4, e. 5
Output (English): b