This is for ECON-251 Chapter 6 Market: Pricing Ceiling, Floors, Taxes and Subsidies. That I need to fill the blank of the sentence while those 4 answer are option I choose and got one incorrect. Where does it wrong? The first has option: tax, ceiling, floor, subsidy. The second blank has option: below, on, above. The third blank is: equilibrium, surplus, shortage. The fourth blank is: labor, wages.

If policy makers believe the equilibrium wage rate is unfairly "too low," then policy makers can address this issue by imposing a price [ Select ] [ Select ] the equilibrium wage. As a result, a(n) [Select ] of [ Select ] occurs. Answer 1: floor Answer 2: above Answer 3: surplus Answer 4: wages