Which of the Following Statements About the Earth's Core Is

Which of the following statements about the Earth's core is NOT true?

A) The entire core may once have been liquid.
B) The core may still be undergoing differentiation because of dissimilar densities of its components.
C) The core is slightly larger than the Moon.
D) Heat dominates the outer core, causing it to be molten, while pressure dominates the inner core, causing it to be solid.