Please choose the correct ending to complete the given sentence: Building sandcastles: A woman is putting sand into a green bucket. she

Ending1: uses a long green mop to collect sand from the sand bucket. Ending2: dumps it out upside down in front of her. Ending3: sand blowers and eats them cow style. Ending4: makes a set of waves in the water.

Answer format: ending1/ending2/ending3/ending4