If the supply of person-hours in this market shifts to the right, then the equilibrium wage will

a. fall; increase and the equilibrium number of person-hours will
b. increase; increase
c. stay the same; increase
d. fall; decrease

A. Equilibrium Wage : Fall , Equilibrium Employment : Increase

Explanation:

Labour Demand (by producers) & Labour Supply (by workers) are analogous to commodity demand (by consumers) & supply (by producers)  by consumers at various prices (wages).

Labour Demand Curve is downward sloping due to wage , demand inverse relationship - more demand at lower wages & vice versa.

Labour Supply Curve is upward sloping (upto a point) due to wage , aupply inverse relationship - more supply at higher wages & vice versa.

If Labour supply increases , curve shifts to the right : It will create excess supply of that labour, which will create competition among sellers (labourers) & reduce wage rate and at the new reduced wage rate , the  labour demand will be more . So , the new equilibrium will be established at lowered wage rate , more employment.

answer; experimentation;