There would be no excess burden from a tax if demand were

Cherry picking is the act of

A. admitting the most expensive students, leaving the less expensive ones to public schools. B. employing highly educated teachers, leaving the less educated ones to public schools. C. employing highly experienced teachers, leaving the less experienced ones to public schools. D. admitting students who are easy to educate, leaving the harder ones to public schools.

In a business cycle, a trough represents the end of

A. a recession. B. a peak C. an expansion. D. an inflation.