Please choose the correct ending to complete the given sentence: Rollerblading: A man on a street surrounded by a crowd is wearing roller blades with rods attached and using ski poles to propel him forward. the rods on his roller blades

Ending1: stay in position as the person on the other side of the sidewalk helps him your by demonstrating how to move backward while a skateboard does it's own work. Ending2: are shown and the score board shows its numbers. Ending3: strike bottles on the ground that make music as he skates by them. Ending4: begin to play in the air and he begins a quick, long back and forth while wearing a red sweater.

Answer format: ending1/ending2/ending3/ending4