14. The cost to manufacture x computers per day is modeled by the following equation 14) C(x) = 20,000 + 25x + 20,000 The average cost C(x) = C(x)/x is defined to be the total cost divided by the quantity produced. How fast is C changing if the current production rate is 2000 computers per day and is increasing at the rate of 200 units per day? (A) Increasing by $1.01 per day (B) Decreasing by $1.01 per day (C) Increasing by $125.01 per day (D) Decreasing by $125.01 per day (E) none of the above