You are presented with the question "What do igneous rocks form into when heated?" and the following answer choices: 
- magma
 - matter
 - crust
 - soils
 - rocks
 - alveoli
 - coal
 - mines

Now knowing that melting is when solids are heated above their melting point and igneous rocks form when rocks are heated to the melting point which forms magma, choose the best answer.


 

 magma        