Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make rainbow cupcakes with rainbow frosting [title] Preheat the oven to 350 degrees fahrenheit or 176 degrees celsius. [title] Place 24 cupcake liners onto a cupcake tray. [title] In a large bowl, cream the butter and sugar until light and fluffy.

Ending1: [title] Beat the eggs with the spoon until light and fluffy in taste. [title] Spread the frosting over the cupcake trays. Ending2: [title] Add the 3 sides of each cupcake and finally the vanilla extract. [title] In another small bowl, mix the flour and baking powder, and confectioners' sugar. Ending3: [step] Beat for about 2-3 minutes. [title] Pour in the vanilla extract and egg whites. Ending4: [title] Add the remaining 10 chocolate chips, teaspoons of baking powder, and half of the powdered sugar to the flour mixture. [title] Add the vanilla extract and the honey to the butter mixture.

Answer format: ending1/ending2/ending3/ending4