The Table Given Below Shows the Price of Each Unit

The table given below shows the price of each unit of the product manufactured by a firm and the marginal cost of producing different units of the output. Table: 9.1
According to the information in Table 9.1, the marginal revenue of the firm:

A) is equal to the marginal cost at each level of output.
B) is equal to price times output.
C) is equal to price times marginal cost.
D) is equal to $1 at all levels of the output.
E) decreases with an increase in output.