Why do you think that economics is often said to be the science that studies choices?

Which of the following trends identified in an environmental scan is a social trend? a. robots are becoming viable technologies for housework, surgery, and many forms of labor. b. microbusiness impact will increase through peer-to-peer websites. c. during the recession, the consumer saving rate rose to 8.3%; the rate has since declined to 3.7%, indicating more spending. d. there will be increasing regulatory guidance regarding green and environmental marketing claims. e. consumers are increasingly switching media as they search for short, engaging messages.