Question

Pictured here is a grain silo on a farm. If it can be filled to the very top with corn, about how much corn can this silo hold? a grain silo is represented by a cylinder with a cone on top. The height of the cylinder is sixty feet. The diameter is twenty feet. The height of the cone is fifteen feet.
A.seven thousand, eight hundred fifty cubic feet of corn
B.twenty-three thousand five hundred fifty cubic feet of corn
C. twenty thousand, four hundred ten cubic feet of corn
D. eighty-one thousand, six hundred forty cubic feet of corn