When a Production Function Has the Form $$\mathrm { Q } = \mathrm { aL } + \mathrm { bK }$$

Multiple Choice

When a production function has the form $$\mathrm { Q } = \mathrm { aL } + \mathrm { bK }$$ , we can say that:

A) the production function is linear and the inputs are perfect substitutes.
B) the production function is linear and the inputs are perfect complements.
C) the production function is linear and the inputs are used in fixed factor proportions only.
D) the production function is non-linear and the inputs are perfect substitutes.