magma igneous sedimentary metamorphic
I gave my students this multiple choice question: Over time, dried lava from an old volcano is worn down and broken into small pieces. When these pieces pile up and are cemented together to form new rock, how would this new rock be classified?

Only one answer is correct among these 4 choices:
- magma
- igneous
- sedimentary
- metamorphic

Could you tell me which one is correct?

sedimentary