Finish the following sentence with the best choice: To make a double boiler

Choices:
- using a saucepan with about an inch of warm water and adding a glass Pyrex bowl that fits on bottom and touches the water
- using a saucepan with about an inch of warm water and adding a glass Pyrex bowl that fits on top but does not touch the water

Answer:
using a saucepan with about an inch of warm water and adding a glass Pyrex bowl that fits on top but does not touch the water