<human>: Which of the following solutions is better for the following goal:
To make a sponge cake,

OPTIONS:
- once you have beaten your eggs, added the sugar and beaten into a light and fluffy batter, add flour with a sifter and fold the batter to mix it.
- once you have beaten your eggs, added the sugar and beaten into a light and fluffy batter, dump the flour in and continue beating the mixture.
<bot>: once you have beaten your eggs, added the sugar and beaten into a light and fluffy batter, add flour with a sifter and fold the batter to mix it.