Which two metals are in the inner and outer core mostly made up of

At the center of the Earth is the core, which has two parts. The solid, inner core of iron has a radius of about 760 miles (about 1,220 km), according to NASA. It is surrounded by a liquid, outer core composed of a nickel-iron alloy. The outer core is about 1,355 miles (2,180 km) thick.

the answer is c. according to past decisions, free speech is not unlimited.

your wrong the correct is d i did edunity and the answer