Please choose the correct ending to complete the given sentence: Putting in contact lenses: A man is talking to the camera. he

Ending1: is holding a tuber and cutting it with a ruler. Ending2: then demonstrates how to mold parchment paper into a frame. Ending3: is wearing a pair of black glasses. Ending4: is shown on a boat, paddling.

Answer format: ending1/ending2/ending3/ending4