In Workouts Problem 23.9, suppose that Irma’s production function is f(x₁, x₂) = (min{x₁, 3x₂})¹/². If the price of factor 1 is w₁ = $2 and the price of factor 2 is w₂ = $15, then her supply function is given by the equation

a. S(p) = min{2p, 45p}.
b. S(p) = 7p.
c. S(p) = p(max{w₁, 3w₂})².
d. S(p) = p/14.
e. S(p) = p(min{w₁, 3w₂})².