Use the Following to Answer Questions Below

Use the following to answer questions below :
-Refer to the graph of market demand and marginal revenue. Two firms have formed a centralized cartel in order to maximize profit on the market. Their marginal cost curves are given below:
MC₁ = 5Q₁ and MC₂ = 10Q₂
In order to maximize profit, the firms should produce

A) Q₁ = 4, Q₂ = 2, and charge P = 50.
B) Q₁ = 8, Q₂ = 0, and charge P = 40.
C) Q₁ = 3, Q₂ = 1, and charge P = 60.
D) None of the above is correct.