cooling of flowing magma. converging of crustal plates. deposition of river sediments. solution of carbonate minerals.
I gave my students this multiple choice question: A fold observed in layers of sedimentary rock most likely resulted from the

Only one answer is correct among these 4 choices:
- cooling of flowing magma.
- converging of crustal plates.
- deposition of river sediments.
- solution of carbonate minerals.

Could you tell me which one is correct?

converging of crustal plates.