请高手帮忙解道数学题

kjhggsdf

What is the volume of a certain rectangular solid?

(1)    Two adjacent faces of the solid have areas 15 and 24, respectively

(2)    Each of two opposite faces of the solid has area 40.

这一题的答案应该是B， 还是C。 谢谢指教。

goodfishs

b

that is cube

kjhggsdf

thanks  a  lot !!!