Answer: Thats very nice :)
I believe D). 5 is the answer. If you clearly think about it, it actually might make sense. You just count the lines pointing from up to down.
Cvol=hpir^2
d/2=r
10/2=5=r
h=2.3
pi=aprox 3.141592
v=2.3*3.141592*5^2
v=180.64
round to tenth
v=180.6 cubic inches
