For research laboratories planned to be established on the Luna planet, two completely closed buildings with the same radii and volumes are designed to be placed on the ground as shown in the figure: one in the shape of a half right circular cylinder and the other in the shape of a hemisphere. Accordingly, what is the ratio of the surface area of the half right circular cylinder building (excluding the ground) to the surface area of the hemisphere building (excluding the ground)? A) $\frac{1}{2}$ B) $\frac{3}{5}$ C) $1$ D) $\frac{7}{6}$ E) $\frac{4}{3}$
For research laboratories planned to be established on the Luna planet, two completely closed buildings with the same radii and volumes are designed to be placed on the ground as shown in the figure: one in the shape of a half right circular cylinder and the other in the shape of a hemisphere.
Accordingly, what is the ratio of the surface area of the half right circular cylinder building (excluding the ground) to the surface area of the hemisphere building (excluding the ground)?
A) $\frac{1}{2}$
B) $\frac{3}{5}$
C) $1$
D) $\frac{7}{6}$
E) $\frac{4}{3}$