Yoplait Yogurt,Thomas's English Muffins,Kellogg's Rice Krispies,Egg McMuffins at MacDonald's,private Label

Yoplait Yogurt,Thomas's English Muffins,Kellogg's Rice Krispies,Egg McMuffins at MacDonald's,private label "bagged" cereal,and Lender's Bagels all relate to General Mills' Cheerios because

A) they must all deal with issues of childhood food allergies.
B) they all represent products that can be breakfast substitutes for one another.
C) they all share the same corporate umbrella.
D) they are all front-runners in low-fat, low-carb food choices.
E) they all failed their first attempts in the marketplace and only succeeded after multiple product changes.