Which of the Following Statements About Earth's Core Is Not

Multiple Choice

Which of the following statements about Earth's core is not correct?

A) It is composed primarily of iron.
B) The inner core is believed to be liquid and the outer core solid.
C) Scientists think the inner core formed before the outer core.
D) A third of the Earth's entire mass,but only a sixth of its volume lies in its core.
E) The inner core,despite being well above melting temperature,remains solid due to tremendous pressure of overlying materials.