Which of the explanations below correctly describes a solid layer of the earth and why it is solid?

Question

The lower mantle is solid because of the movement of the outer core

The inner core is solid because of the high pressure and temperatures.


.The crust is solid because of the extremely high temperatures and pressure. ,

The outer core is solid because of the low pressure and below freezing temperatures.

Answer 1

The inner core is solid because of the high pressure and temperatures.