Answer:
In equilibrium, each worker is paid his or her value of the marginal product of labor.
Explanation:
Here are the missing option of the question:
As per marginal theory of productivity of income distribution, Income of each factor production is equal to its marginal productivity.
Marginal productivity is one additional unit of production by one unit additional unit of factor, which bring changes in total production. Firm hire labor till marginal revenue product of labor is more than wage rate of labor. The point at which Marginal revenue product of labor is equal to wage rate labor is the labor market equilibrium.