I think it would be 2 and a half hours/ 2 hours and 30 minutes.
Your answer is c. If you are struggling divide to backtrack and that should help you get to the answer.
190/5 = 38
So, they can make 38 quarts in an hour.
38 * 36 = 1,368
They can make 1,368 quarts in 36 hours.