-On the Above Graph, If the Oligopolist's MC Curve Shifts

-On the above graph, if the oligopolist's MC curve shifts from MC₁ to MC₂, the firm will charge:

A) a higher price and total revenue will increase.
B) the same price and sell more output; total revenue will increase.
C) the same price and sell the same amount of output; total revenue will remain the same.
D) a higher price and sell less output; it can't be determined whether total revenue will increase.