anything but A

Consider a production function f(L, K) = (104 + K04)25. The elasticity of substitution between labor and capital is 0.4 and there is less substitutability than for a Cobb-Douglas production function /(L, K) = 104 0.4 is 0.4 and there is the same substitutability as for a Cobb-Douglas production function /(L, K) = 104 0.4 is 0.6 and there is less substitutability than for a Cobb-Douglas production function f(L, K) = 104 0.4 is 1.7 and there is more substitutability than for a Cobb-Douglas production function f(L, K) = 104 0.4 is 2.5 and there is more substitutability than for a Cobb-Douglas production function f(L, K) = 10.40.4