The correct order of events that describes the processes for magma to become sand is:
- Cooling: Magma cools and solidifies to form igneous rocks.
- Erosion: These rocks are then worn down by weathering and erosion into smaller particles.
- Cementation: Over time, these particles can be compacted and cemented together to form sedimentary rocks.
None of the options you provided exactly fit this correct sequence, as cementation was not included. The closest would be cooling, erosion, but it is incomplete without cementation. However, strictly from the choices given, "cooling, erosion" is the most applicable.