Suppose the Market Demand for Good X Is Given by Q_X^d

Multiple Choice

Suppose the market demand for good X is given by Q_X^d = 20 − 2P_X.If the equilibrium price of X is $5 per unit,then consumers' expenditure on X is:

A) $5.
B) $25.
C) $50.
D) This cannot be determined from the information contained in the question.