Please choose the correct ending to complete the given sentence: Chopping wood: A big stump is hit with an ax to make some cord wood. the chain

Ending1: part of the stump is untied and a chain is placed around the stump and tied into place with some flint. Ending2: is removed and split wood falls out. Ending3: of a door is taken off of a wall and replaced with a larger metal pole. Ending4: of the ax gets stuck into the wood of the stump.

Answer format: ending1/ending2/ending3/ending4