Please choose the correct ending to complete the given sentence: Building sandcastles: There is a boy sitting on a beach building sand castles with a water bottle and a sand bucket. another little boy wearing a pink float

Ending1: does the same thing as the first boy, but he's a lady. Ending2: comes running and joins him. Ending3: by and help make sand castles on the beach. Ending4: is kneeling on the sandy top of the beach banging his head on a wooden wall with his paddle.

Answer format: ending1/ending2/ending3/ending4