Multi-select problem: How does the next paragraph end?

A big stump is hit with an ax to make some cord wood. the chain

Choices:
(i) part of the stump is untied and a chain is placed around the stump and tied into place with some flint.;
(ii) is removed and split wood falls out.;
(iii) of a door is taken off of a wall and replaced with a larger metal pole.;
(iv) of the ax gets stuck into the wood of the stump.;
(ii)