William T.
It doesn't have to be big. Just something that fills you until 12. Like yogurt with blueberries and a banana mixed together.
Kent E.
It should be big enough to fill you for a couple hours, so you aren't exhausted when you start to get busy with certain things.
Amaro F.
A breakfast is to kick start your day,it doesn't matter how big or small your breakfast should be ,but after eating breakfast you should not feel lazy rather energetic..