The rocks cycle is a cyclic movement of the rocks in the lithosphere. The cycle is taking place from the igneous to sedimentary and later on metamorphic.
The key process of the rock cycle is crystallization, erosion and sedimentation, and metamorphism. The process of weathering and erosion is a natural surface process and melting is thus a subsurface process.Hence the option C is correct.
Learn more about the subsurface event that takes place.
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Melting
Explanation:
The rock cycle is the process of geology that shows the transition of rocks in the geologic time period.
Subsurface events are those events that take place below the earth's surface and above the deep surface of Erath.
Erosion and weathering are the surface event and not subsurface event and cementation is deep surface event.
Melting is a subsurface process in which metamorphic rocks are converted into igneous rocks.
Hence, the correct option is "melting".