The Market Supply Curve for Labour Is

Multiple Choice

The market supply curve for labour is

A) derived from the market supply curve for the output produced with labour.
B) perfectly inelastic if leisure is an inferior good.
C) determined by adding up the quantity of labour supplied by each worker at each wage, holding constant all other variables that affect the willingness of workers to supply labour.
D) determined by adding up the wages each worker is willing to work for at a given quantity supplied, holding constant all other variables that affect the willingness of workers to supply labour.