Finish the following sentence with the best choice: How are the marshmallows melted in a no bake cake?

Choices:
- In a large saucepan add butter and marshmallows and melt over medium heat.
- In a large saucepan add butter and marshmallows and melt over extremely high heat.

Answer:
In a large saucepan add butter and marshmallows and melt over medium heat.