Please choose the correct ending to complete the given sentence: Slacklining: There is man wearing a blue shirt and another man in black seated on a rock, talking about rock climbing. They are seated at a very high altitude in the mountains. the person in blue

Ending1: is talking about the walking poles at the top of mountains. Ending2: is demonstrating how the rope is fastened from the rocks. Ending3: struggles to rock climbing. Ending4: starts climbing the rock climbing wall.

Answer format: ending1/ending2/ending3/ending4