. Do the following functions exhibit increasing, con- stant, or decreasing returns to scale? What happens to the marginal product of each individual factor as that factor is increased and the other factor held constant? a. q = 3L + 2K b. q = (2L + 2K)\" c. q = ELK:l d. q = LWK\"2 e. at; = 41.1\" + 4K