(c) Interpret the results from parts (a) and (b) in the context of the problem. The unit cost of manufacturing 400th road bike is less than the unit cost of manufacturing 100th. The unit cost of manufacturing 401st road bike is less than the unit cost of manufacturing 101st. The unit cost per road bike decreases as the number of road bikes manufactured increases. The unit cost per road bike increases as the number of road bikes manufactured increases.The monthly cost C, in dollars, of manufacturing x road bikes is given by the function C (x) = 0.005x3 - 0.6x2 + 200x + 100000 (a) Find the average rate of change of the cost C of manufacturing from 100 to 101 road bikes. (Use decimal notation. Give your answer to three decimal places.) the average rate of change: (b) Find the average rate of change of the cost C of manufacturing from 400 to 401 road bikes. (Use decimal notation. Give your answer to three decimal places.) the average rate of change