Please choose the correct ending to complete the given sentence: Rock climbing: A man is standing at the foot of a large wall. he

Ending1: is using a pair of bongo drums. Ending2: is brushing and scraping a piece of wood with a red cloth. Ending3: is playing a drum set. Ending4: is stretching and staring at it looking like he might climb it.

Answer format: ending1/ending2/ending3/ending4