Task: Question Answering
Input (English): Problem: at the end of the month, a certain ocean desalination plant ’ s reservoir contained 30 million gallons of water. this amount is twice the normal level. if this amount represents 75 % of the reservoir ’ s total capacity, how many million gallons short of total capacity is the normal level ?
Options: a. 10, b. 15, c. 20, d. 25, e. 30
Output (English): c