Please choose the correct ending to complete the given sentence: Rock climbing: He is stretching and staring at it looking like he might climb it. He looks up and down before putting a foot on the base of the wall. he

Ending1: starts to work out and he bends down to grab his class belt. Ending2: then starts to climb higher and higher. Ending3: gets engaged in another workout. Ending4: glues himself as tightly as he can, then climbs the wall.

Answer format: ending1/ending2/ending3/ending4