Question

Which of Earth's layers is comprised mainly of extremely hot liquid metals??

A.) inner core
B.)outer core
C.)mantel
D.)crust

The answer is A!!

Answer 1

The inner core is comprised of liquid and highly-magnetic iron, this is what generates the magnetic field. The friction of the liquid metals create the magnetic sphere of the earth. 

Answer 2

Yes. That is right.

The inner core is comprised mainly of extremely hot liquid metals which is simply within the mantle.