valleys carved by a moving glacier piles of rocks deposited by a melting glacier grooves created in a granite surface by a glacier bedrock hills roughened by the passing of a glacier
I gave my students this multiple choice question: Which land form is the result of the constructive force of a glacier?

Only one answer is correct among these 4 choices:
- valleys carved by a moving glacier
- piles of rocks deposited by a melting glacier
- grooves created in a granite surface by a glacier
- bedrock hills roughened by the passing of a glacier

Could you tell me which one is correct?

piles of rocks deposited by a melting glacier