Please choose the correct ending to complete the given sentence: Scuba diving: Two men wearing scuba diving gear in an indoor pool talk to the camera. The camera follows one of the men underwater where numerous manmade obstacles are present. other men dressed like astronauts

Ending1: wear scuba gear playing on the water while instructors stand by and watch. Ending2: are shown as they stand in a line talking. Ending3: are underwater with them. Ending4: are underwater as they prepare for scuba diving.

Answer format: ending1/ending2/ending3/ending4