If Ernie's Individual Labor Supply Curve Is Upward Sloping, Then

Multiple Choice

If Ernie's individual labor supply curve is upward sloping, then Ernie responds to an increase in the

A) wage by working more hours per week.
B) opportunity cost of leisure by working fewer hours per week.
C) opportunity cost of leisure by taking more hours of leisure per week.
D) Both a and b are correct.