Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make watermelon chips [title] Choose and wash a watermelon. [step] Select a ripe watermelon. It should feel heavy and firm.

Ending1: If it feels rubbery or mushy, it may be too ripe and predispose to carpal tunnel syndrome. The stretchy shape of the watermelon also helps to keep you from getting stuck. Ending2: Its flesh should have veins and be colorless. Break the watermelon into halves with a fork or a spoon and cut off the core. Ending3: Avoid watermelons that have soft spots on the rind since they may be too ripe. Look for a watermelon that has a slightly yellow-colored spot on the rind. Ending4: Also look for rotten flesh, discolored flesh, and chips with empty veins. [title] Peel the watermelon and clean it.

Answer format: ending1/ending2/ending3/ending4