Answer please its a quiz

Mankiw attributes – chapter 1 and his 10 principles – differences in living standards within a countryover time and across countries at a moment in time to: a. the presence or absence of inflation and unemployment.b. the allocation of resources between private markets and the public sector.c. those that have dealt successfully with the efficiency v. equality tradeoff and those that haven’t.d. differences in productivity.e. ones that think at the margin and respond to incentives and those that don’t.

Growth of the business (be sure to use the terms “culture” and “cultural diffusion” in this section.) of debbie fields. plz me

The great depression severely affected the following groups? select all that apply. politicians, bankers, farmers, business people, factory workers