In Problem 11, the Production Function Is F(x₁, X₂)

In Problem 11, the production function is f(x₁, x₂) . If the price of factor 1 is $8 and the price of factor 2 is $16, in what proportions should the firm use factors 1 and 2 if it wants to maximize profits?

A) x₁ = x₂.
B) x₁ = 0.50x₂.
C) x₁ = 2x₂.
D) We can't tell without knowing the price of output.
E) x₁ = 16x₂.