In order for sediment to be transformed into rock, what processes must take place?

a.
melting and spreading

b.
crystallization and solidification

c.
weathering and erosion

d.
compaction and cementation

I think the correct answer from the choices listed above is option D. In order for sediment to be transformed into rock, compaction and cementation processes should take place. After these processes, the sedimentary sequence has changed into a sedimentary rock. Hope this answers the question.

H=   2(area/a+b)h= 2(144/a+b)h= 2(144/18+18)h= 2(144/36)h= 2(4)h=8