Is it possible that a​ firm's production function exhibits increasing returns to scale while exhibiting diminishing marginal productivity of each of its​ inputs? To answer this​ question, calculate the marginal productivities of capital and labor for the production of Crocs using the production​ function

q=AL^αK^β=21.5L^0.85K^0.5

A.) This production function exhibits: (Increasing or Diminishing?) marginal product for labor and (Increasing or diminishing?) marginal product for capital?
B. This production function exhibits (increasing, decresing, or constant?) returns to scale?
C. Therefore, a production function (can or cannot?) exhibit diminishing marginal returns while exhibiting increasing returns to scale.