The question is missing the alternatives. Here is the complete question.
The volume of a rectangle prism is 100 cubic inches. Which of the alternatives is its greatest possible length? a.) 100 b.) 10 c.) 20 d.) 60 e.) 50
Answer: a.) 100
Explanation: Since volume of a rectangle prism is V = length * width * depth, in order for the length to be the greatest possible, it has to be the biggest possible number and, width and depth has to be the lowest.
Since Volume = 100 cubic inches, the biggest number possible is 100, with the others being 1.
So, the greatest possible length for the prism is a.) 100.