Please choose the correct ending to complete the given sentence: Scuba diving: A tropical beach is seen. Sea turtles graze and swim in the ocean. Various fish are seen swimming through the reef. a manta ray

Ending1: swims in the ocean over a reef. Ending2: approaches the dock, giving hand signals. Ending3: watches and guides people. Ending4: is seen walking through the water.

Answer format: ending1/ending2/ending3/ending4