Finish the following sentence with the best choice: To flip a pancake in a pan,

Choices:
- using a spatula, once the pancake is bubbling up from the bottom, slide under the pancake and flip it over to the other side.
- using a spatula, once the pancake has cooked in the pan for fifteen seconds, slide under the pancake and flip it over to the other side.

Answer:
using a spatula, once the pancake is bubbling up from the bottom, slide under the pancake and flip it over to the other side.