The Inner Core at the Center of the Earth

The inner core at the center of the Earth

A) contains the heaviest elements of the Earth's mass.
B) is made from rocks similar to those on the Earth's surface.
C) contains a mixture of solids, liquids, and gases.
D) is under low pressure, but at a very high temperature.
E) is solid, but is not the same composition as the surface of the Earth.