Answer:
The correct answer would be C. inner core, outer core, mantle, crust.
The core is the innermost and hottest layer of the earth. It is sub-divided into two layers; the inner core and the outer core.
The average temperature of the inner core is around 6000°C or more and that of the outer core is around 4400°C-6000°C.
The mantle is present between the crust and the core. Its average temperature is around 200°C near the mantle-crust boundary and 4000°C around the mantle-core boundary.
The crust is the outermost layer of the earth with an average temperature of around 200°C to 400°C.
