The production cost of an item can be approximated by the linear function C= vQ + F, where C is the production cost, Q is the number of units produced (output), v is the variable cost per unit, F is the fixed cost. It is given that when the output is 100 units the production cost is $500 and when the output is 200 units the production cost is $800. The cost of production 1000 units (i.e., Q = 1000) is: a. $3500 b. $3200 c. $3420 d. $3300 e. None of the above