The rocks would become rounded. The rocks would be used for shelter. The rocks would be moved by the wind. The rocks would break into smaller pieces.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: When cold weather freezes water in the cracks of rocks, which would most likely happen?
Possibilities:
- The rocks would become rounded.
- The rocks would be used for shelter.
- The rocks would be moved by the wind.
- The rocks would break into smaller pieces.

The rocks would break into smaller pieces.