The total sales of S (in thousands of DVD's) of a certain movie are given by the following formula where t is the number of months since the release of the DVD. Use the formula to answer the questions. S(t)= 50+2 ² +100 a) Find S'(t). S'(T)- b) Find S(5) and S'(5). The value of S(5) rounded to the nearest hundredth is The value of S'(5) rounded to the nearest hundredth is What do the values for S(5) and S'(5) indicate? A. After 5 months, the total sales are 3200 DVD's and the sales are increasing at the rate of 10 DVD's per month. B. After 5 months, the total sales are 10,000 DVD's and the sales are increasing at the rate of 3200 DVD's per month. OC. After 5 months, the total sales are 10,000 DVD's and the sales are increasing at the rate of 3.2 DVD's per month. OD. After 5 months, the total sales are 32,000 DVD's and the sales are increasing at the rate of 1000 DVD's per month.