Explanation:
We have, a sphere and a cylinder have the same radius and height. The volume of the cylinder,
![V_c=11\ ft^3](https://img.qammunity.org/2021/formulas/mathematics/high-school/s3yg3tqkhkv1gx2pmiodk1folzpq05eync.png)
The volume of sphere is :
![V_s=(4)/(3)\pi r^3](https://img.qammunity.org/2021/formulas/mathematics/high-school/xiiuauhmdwkvv7al8tuj76yaofmdjx1a1a.png)
The volume of cylinder is :
![V_c=\pi r^2h](https://img.qammunity.org/2021/formulas/mathematics/high-school/w4l54esu16vggj2f1axhdplug6poi12wqz.png)
Dividing the volume of sphere and the volume and cylinder, such that,
![(V_s)/(V_c)=(4\pi r^3)/(3\pi r^2h)](https://img.qammunity.org/2021/formulas/mathematics/high-school/s5fot6casg0ka53i1iwhzqq34rgtjx0574.png)
As r = h
![(V_s)/(V_c)=(4)/(3)\\\\V_s=(4V_c)/(3)\\\\V_s=(4)/(3)* 11](https://img.qammunity.org/2021/formulas/mathematics/high-school/3xs8gu472b1jklv4cmeiucloosq0r5pjic.png)
So, the volume of sphere is (four-third) of 11. therefore, the correct option is (A).