A firm decides to use peak-load pricing.Its demand function in the off-peak period is Q = 400 - 4P/3, and during the peak period is Q = 1800 - 2P.The firm's marginal cost is constant at $100 up to its peak capacity of 800 units.What price does the firm charge during the peak period?

Group of answer choices

$500

$400

None of the choices listed is correct.

$350

$450