Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make a healthy breakfast bowl [title] Choose your base ingredient. [step] When choosing a healthy base ingredient, it's best to find something high in protein, fiber, calcium, and iron. You don't need to choose a base loaded with each of these nutrients, but selecting a base that is high in one or two will give you a lot of nutritional value.

Ending1: [substeps] Protein-rich breakfast cereals (rice, hard boiled eggs, flavored milk and yogurt) should be a balanced selection. Protein is higher in fiber, calcium, iron, and omega-3 fatty acids. Ending2: [title] Pre-heat the oven to 350 ° f (177 ° c). [step] Once the oven has been preheated, it's ready to bake. Ending3: Try to keep saturated and trans fats, sugar, cholesterol, and sodium low. [substeps] Generally, yogurt is high in calcium and protein, especially greek yogurt. Ending4: [substeps] Some serving sizes include about 50% protein , 2% fiber, and no fat. Go for a base of about 2 , 300 g or about 1 cup per serving.

Answer format: ending1/ending2/ending3/ending4