Please choose the correct ending to complete the given sentence: Putting in contact lenses: He explains what are the correct ways to put on contact lenses and also how to keep them clean. a woman

Ending1: is demonstrating how to correctly wear lenses in the eyes as she takes the lenses out of the case. Ending2: cleans a white vacuums with a cloth and then then sprays it outdoors using an aerobics machine. Ending3: appears with bin lids hanging from her hands and she's talking to the camera. Ending4: at the counter hands him a loaded skillet.

Answer format: ending1/ending2/ending3/ending4