Question

For sediment to be transformed into rock, what processes must take place?

A. weathering and erosion
B. melting and spreading
C. crystallization and solidification
D. compaction and cementation

Answer 1

The best answer is either A or D cause you do need weathering and erosion and both of them take place first...but in D that's another process for a sedimentary rock to be transformed.

Answer 2

The answer is D) because the sediment must compact over a large period of time to the point it cements.
Hope I helped! :)