Please choose the correct ending to complete the given sentence: Surfing: . a man in a green and blue wet suit

Ending1: is on the blue board in a wake. Ending2: is preparing to jump over a board in an indoor pool. Ending3: kneels in the water and reaches his arms and legs out above him. Ending4: surfs on a rough series of waves in the ocean at the beach.

Answer format: ending1/ending2/ending3/ending4