Suppose a production function for a firm takes the following algebraic form Q=4KL-(0,3)L2, where Q is the output of sweaters per day. Now suppose the firm is operating with 7 units of capital (K=7) and 9 units of labour (L=9). What is the output of sweaters?
A) 228 sweaters per day
B) 249 sweaters per day
C) 191 sweaters per day
D) 183 sweaters per day
E) 39 sweaters per day