Concept:A batter is a thin mixture used for coating or making pancakes, usually made from flour, egg, and a liquid such as milk.Explanation:Batter requires enough liquid to make a pourable mixture.Milk provides the liquid and helps bind the flour and egg together.Egg gives structure and helps the batter hold together when cooked.Therefore, the basic ingredients are flour, egg, and milk.Answer:A. flour, egg and milk.