Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to store cupcakes [title] Place the cupcakes in an airtight container. [step] Place both frosted and unfrosted cupcakes in airtight containers. [substeps] Avoid stacking the cupcakes.

Ending1: It doesn't matter what size container you use. The frosting will form a mold if you tilt or lift the cupcakes. Ending2: The cupcakes are not as airtight as the frosting and will create mold once they're exposed to air. [title] Store in the freezer until ready to use. Ending3: Space them apart with enough room for you to reach in and remove them later. Use tall containers for frosted cupcakes to avoid upsetting the frosting. Ending4: Make sure the lid is tightly fastened, so no air can enter. Avoid opening the cupcakes and pouring frosting through gaps.

Answer format: ending1/ending2/ending3/ending4