Question

where do rocks get burned by the heat of the magma?
edge of the magma
away from the magma
middle of magma

Explanation:

Rocks near the edge of magma are in contact with it and can be 'burned' (metamorphosed or melted) by its heat. Rocks away from the magma are not exposed to its heat, and rocks in the middle of magma are already part - of the magma system rather than being 'burned' in the sense of being affected by the heat from outside the rock.

Answer:

Edge of the magma