What is molten rock deep within Earth called?

Debris
Lava
Magma
Sediment

Deep within Earth, temperatures are hot enough—750°C to 1250°C (about 1400°F to 2300°F)—to melt rock. This molten rock is called MAGMA. Molten rock that reaches Earth's surface is called lava. An igneous rock is classified on the basis of its mineral composition and the size of its mineral crystals.

Explanation:

So MAGMA the third option is your answer :)

answer sixty-two percent;