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

A close up of a machine is shown followed by a close up of a vacuum and a person using her foot. the person

Available options:
[i] uses a tool all along the book while moving around between the pages with the camera following in their direction..
[ii] pushing the vacuum along the floor and then empties out the filter into the trash..
[iii] wipes the floor under the machine..
[iv] shows how the vacuum makes a hole in carpet and covers it with it while the machine continues to work..
[ii]