The total sales of a company (in millions of dollars) t months from now are given by S(t) = 0.021 + 0.51- + 2t + 8. (A) Find S'(1). (B) Find S(7) and S'(7) (to two decimal places). (C) Interpret S(13) = 162.44 and S'(13) =25.14. (A) S'(t) = (B) S(7) = S'(7) = (C) Choose the correct interpretation of S(13) = 162.44. O A. The total sales 13 months from now will be $162.44 million dollars. O B. In approximately 162 months the sales will be increasing by $13 million per month. O C. In 13 months the sales will be increasing at a rate of $162.44 million per month