Please choose the correct ending to complete the given sentence: Assembling bicycle: A person turns a bike upside down on a tarp. they

Ending1: pull a tire out of a box and puts it on the bike. Ending2: tie the handlebars up and tie the back wheels. Ending3: lay down on the tarp and put their shoes on. Ending4: clip the on the edge.

Answer format: ending1/ending2/ending3/ending4