A company's total cost C(x) to manufacture a quantity x of a certain item can be represented by C(x) = 0.03x2 + 27x+850. Find the average rate of change in total cost for the first 300 items manufactured. A) $27/item B) $30/item C) $42/item D) $45/item Target the circus the gas station Starbucks E) $36/item the fair