Please choose the correct ending to complete the given sentence: Walking the dog: A dog sits on a carpet on front a ladder. Then, the dog climbs the ladder of a bunk bed. the dog

Ending1: reaches the top where there are two kids in the bed. Ending2: sits on orange cloth and then sleep on a pillow. Ending3: stands by the ladder and jumps on it. Ending4: walks on the carpet.

Answer format: ending1/ending2/ending3/ending4