Which of the following goods is least likely to be in a market basket?

What would not be held constant in testing a theory that if a student studies harder, he will get a better grade? a. The course being taken

b. The ability and effort of the other students in the class. c. The grading scale in the course. d. The number of hours the student spends studying.

A craft union can raise union members' wages by restricting labor supply through high initiation fees, long apprenticeship periods, or difficult qualifying requirements

Indicate whether the statement is true or false