People from a population who are studied for the purpose of learning something about the whole population are referred to as the sample.
I think the correct terms to fill in the blanks are structuring and transferring. Apprenticeship programs typically progress from structuring to transferring. These programs would aim at molding an individual to be suited for a certain job or task, structuring that person into someone who is well versed to a particular activity and as he achieves this goal the possibility of getting a regular job is high.
Answer:
True, every relationship has problems
D. Opportunity cost
Because in the end if you want something you have to work for it, no matter what. Everything generally costs money in this world