Answer:
Cylinder C is the right answer.
Explanation:
We have to find the storage capacity or the volume of cylindrical silos.
A. radius 6 feet; height 60 feet
Volume =

V =
cubic feet
B. radius 8 feet; height 50 feet
V =
cubic feet
C. radius 10 feet; height 34 feet
V =
cubic feet
D. radius 12 feet; height 20 feet
V =
cubic feet
Comparing all the volumes, we can see that cylinder C has the heighest volume.
Therefore, cylinder C is the right answer.