Please choose the correct ending to complete the given sentence: Snow tubing: We see a lady and a girl on a raft on a snowy hill. the lady and a man

Ending1: push people down the hill. Ending2: put tubes down the river. Ending3: are in a boat, and the lady floats forward. Ending4: help one another build a sand castle on the frozen lake.

Answer format: ending1/ending2/ending3/ending4