Finish the following sentence with the best choice: To save money on your water bill

Choices:
- Put a buck in your toilet tank. You'll save a buck's worth of water every time you flush the toilet.
- Put a brick in your toilet tank. You'll save a brick's worth of water every time you flush the toilet.

Answer:
Put a brick in your toilet tank. You'll save a brick's worth of water every time you flush the toilet.