I am having trouble deciphering the market structure of each.

What are they, what approach can I use for questions like this?

-Options include Sole proprietorship, partnership, crown corporation, multinational corporation, private limited, cooperative, not for profit for:

Bombardier, Apple, Mccains, Real estate, Financial planner, Canadian blood services, Cancer Care Ontario, Canadian Blood services, CBC news, school boards, hydro ontario, hydro-quebec, Gay Lea Foods, Alterna Credit Union, Physician, price water coopers, landscaper, Kim's Convenience.

Also, what is civilian labour force entailing, labour force entailing and what does it mean when people are looking for work or available for work. (i.e. If someone is not looking for work, but is not considered unemployed, what term does that fall under?)