Please choose the correct ending to complete the given sentence: Scuba diving: A man is scuba diving under the ocean water. he

Ending1: is exploring the bottom of the sea, showing off tips for how to swim. Ending2: moves his arms around to show measurements. Ending3: lays on the ground next to a sign. Ending4: seems to be underwater very intently.

Answer format: ending1/ending2/ending3/ending4