A Duopoly Faces the Demand Curve D(p) = 30 -

A duopoly faces the demand curve D(p) = 30 - .5p. Both firms in the industry have a total cost function given by C(q) = 4q. Suppose that firm 1 is a Stackelberg leader in choosing its quantity first. Firm 1's profit function can be written as

A) q₁ = 14 - .5q₂.
B) q₂ = 14 - .5q₁.
C) 28_q1 - q²₁.
D) 56_q1 - q²₁.
E) 60_q - q².