Please choose the correct ending to complete the given sentence: Scuba diving: The people are in the pool wearing goggles. The people are wearing oxygen thanks while in the pool. the people

Ending1: are training on how to dive and swim under water with their oxygen on. Ending2: are underwater putting on their suits. Ending3: are enjoying themselves at the dining room with food in bowls. Ending4: are swimming in inter tube form the pool.

Answer format: ending1/ending2/ending3/ending4