Please choose the correct ending to complete the given sentence: Using the rowing machine: A man is sitting on a weight machine and grabbing onto handle bars. He pulls the handlebars back and fourth as the seat he's moving on continuously moves. he

Ending1: grabs more bar screws and begins to work out more as he lifts the bar above his head. Ending2: then lifts the bar up above his head. Ending3: twists his body quickly and lets go. Ending4: performs this set several times and eventually pauses to let the instruction end.

Answer format: ending1/ending2/ending3/ending4