Answer :
First prism= 2.3*3*7= 48.3 cubic
Second prism= 2.3*2.3*5= 26.45 cubic
Then you add two cubics together 48.3+26.45 and you get 74.75
So D was correct
Second prism= 2.3*2.3*5= 26.45 cubic
Then you add two cubics together 48.3+26.45 and you get 74.75
So D was correct