Answer:
the first one
dealing with people can be difficult
health insurance is where you have money and of which you use for your health, physical or mental. in my own words
All of the above i believe
The first one and the third one both look like good answers. But if I had to choose one, I would go with Piston because its talking about technology. The piston is part of an engine so it would have to do with technology. :)
