A right circular cylinder with height 7 cm and completely filled with water and an empty right cone with the same base and height h cm are combined as shown in Figure 1.
When this solid is inverted as shown in Figure 2, the height of water inside the solid is 11 cm. What is h in cm?
A) 5
B) 5.5
C) 6
D) 6.5
E) 7