A Competitive, Capitalistic Firm Produces Gift-Wrapped Pieces of the Berlin

A competitive, capitalistic firm produces gift-wrapped pieces of the Berlin wall, using the standard Marxian inputs, K and L.The production function is y = (K + L) ^1/2, where y is the number of pieces produced.Neglect the use of the wall itself.The price of capital, K, is r, and the price of labor, L, is w

A) Regardless of w and r, cost minimization requires that K = L.
B) The technology has increasing returns to scale.
C) If r > w, then L = 0.
D) If r > w, then K = 0.
E) None of the above.