I have a problem in economics on monopsonistic exploitation. Please help me in the following question. The Labor union contracts, an analogous worth rule or the minimum wage laws might boost equilibrium employment when a firm has been practicing: (1) Price discrimination. (2) Monopolistic exploitation. (3) Monopsonistic exploitation. (4) Featherbedding. (5) Blacklisting.
Select the most correct option from the above.