John's Reservation Wage Is $16 Per Hour

John's reservation wage is $16 per hour. This means that

A) John will not supply labor in the market until he receives a wage of at least $16 per hour.
B) John will supply labor in the market at a wage of $16 and lower.
C) John will work 16 hours per week.
D) John will decrease the hours he works when his wage rate exceeds $16 per hour.