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 am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which land form is the result of the constructive force of a glacier?
Possibilities:
- 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

piles of rocks deposited by a melting glacier