The correct answer is: D. outer mantle
The mantle is the layer of Earth that lies between the crust and the outer core. It is made up of solid rock and is about 2,900 kilometers thick. The outer mantle is the layer of the mantle that is closest to the crust. It is made up of solid rock that is hot and plastic. The outer mantle is responsible for the movement of tectonic plates.
The inner mantle is the layer of the mantle that is below the outer mantle. It is made up of solid rock that is very hot and dense. The inner mantle is responsible for the generation of the Earth’s magnetic field.
The outer core is the layer of the Earth that is below the inner mantle. It is made up of liquid iron and nickel. The outer core is responsible for the Earth’s magnetic field.
The inner core is the layer of the Earth that is below the outer core. It is made up of solid iron and nickel. The inner core is the hottest part of the Earth.