Me plzzz select all the correct answers. which two phrases describe a universal theme? is common to all cultures a examines topics related to outer space b explores basic human experiences c is relevant only to modern societies d has to do with medieval europe

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.