Anu has focused his ethnography on teenagers in the foster care system. The aim of his work is to advocate for a larger number of placements for these children as many families feel the challenges of raising foster teenage children are too great, and therefore select to foster younger children. Anu's ethnography would be best classified as a(n):

a. autoethnography.
b. critical ethnography.
c. realist ethnography.
d. confessional ethnography.

"choosing is refusing" means individuals face an opportunity cost with each decision they make. economists state that every decision involves trade-offs. opportunity cost is the least desirable alternative given up as a result of a decision.

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.