Can someone please explain it to me ASAP??!!! This is physical application

A glass has circular cross sections that taper (linearly) from a radius of 7 cm at the top of the glass to a radius of 6 cm at the bottom. The glass is 14 cm high and full of orange juice. How much work is required to drink all the juice through a straw if your mouth is 4 cm above the top of the glass? Use 1000 kg / m for the density of orange juice and 9.8 m / s for the acceleration due to gravity. . . . . . Find the cross-sectional area A(y) of a horizontal slice at y. Use the center of the bottom of the glass as the origin in your coordinate system. Choose the correct answer below. bylis y + 0.84 3: OA. A(y) = It 14 ngs O B. A(y) = It [y + 0.84 2 3:5 sodes 14 O C. A(y) = x(y + 0.84)2 2:5 O D. A(y) = (y +0.84)