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

How to protect children during a home renovation
Hire a kid-friendly contractor.
The first step in keeping your children safe during a home renovation is hiring the right contractor. A contractor's style of work can make a big difference in the child safety of a project.

Pick your answer from:
[i] The contractor needs to have great work knowledge and experience working with children. He needs to be able to design and log rooms, create custom crib chargers, or handle wall courses for a family or team..
[ii] For example, make sure your contractor understands that any barriers should be left up during construction, tools should never be left in reach of children, and live electrical work should never be left unattended. Ask your contractor if they have experience working around children, and gauge their comfort level in maintaining a kid-friendly work area..
[iii] Work with the contractor to select a design, program, or product that suits your budget and your property's needs. For example, you might also ask them to select a style or decor..
[iv] If your home design and building company keeps all the work relatively simple, the contractor will be able to weed out other contractors who aren't available to do much work. A critical factor to consider when hiring a contractor is whether you need a contingency fee..
[ii]