The tree would get sunlight. The tree would provide shelter for birds. The sidewalk might crack as the tree grows. The temperature of the sidewalk would drop.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which is the best reason for planting a tree away from a sidewalk?
Possibilities:
- The tree would get sunlight.
- The tree would provide shelter for birds.
- The sidewalk might crack as the tree grows.
- The temperature of the sidewalk would drop.

The sidewalk might crack as the tree grows.