Final answer:
Kasa started with one gallon of monkey chow and used it all to prepare a meal, so he has 0 gallons left. None of the options provided are correct.
Step-by-step explanation:
The question pertains to a simple subtraction problem in mathematics. Kasa started with a gallon of monkey chow. If Kasa used the entire gallon to prepare a meal for some monkeys, there would be none left. So, the correct answer is that Kasa would have 0 gallons of monkey chow remaining after using it all to prepare the meal. None of the options provided in the question (a) 1/4 gallon, (b) 11 gallons, (c) 12 gallons, (d) 11/24 gallons are correct.