Finish the following sentence with the best choice: How to flush a toilet.

Choices:
- Find the button or lever on the toilet. Lift it up. Hold the button or lever up for several seconds if required.
- Find the button or lever on the toilet. Push it down. Hold the button or lever down for several seconds if required.

Answer:
Find the button or lever on the toilet. Push it down. Hold the button or lever down for several seconds if required.