Answer:
Option D, Increasing temperatures may partially melt the rock
Explanation:
The earth in its internal layer is extremely hot. Whenever a rock is pushed deep into the earth crust, its form changes due to extreme heat and pressure.
Usually, these rocks starts melting with increasing depth and remain in molten state as magma.
Along with this, extreme heat causes weathering of rocks along with partial or complete melting.
Hence, option D is correct.
