Please choose the correct ending to complete the given sentence: Using the rowing machine: We see a man on a rowing machine. the man

Ending1: bends over and puts his 408 in the bracket. Ending2: adjusts the dial and works out more. Ending3: unhooks a bike from a mounting bracket on the machine. Ending4: stands on front the rowing machine.

Answer format: ending1/ending2/ending3/ending4