sition (in thousands of feet) of a car driving along a straight road at time t in minutes is given by the function y = s(t) that is pictured below. 14 10 16 6 10 Which graph A-F is the best representative of the derivative function s'(t)? |B V (Note: the vertical axes of these graphs may have been scaled to to fit these functions. Click on a graph to enlarge it.) Which of the following statements are true? Select all that apply. QA. When s'(t) is positive, the car's position is increasing. (B. When the car slows down, s'(t) is negative. [C. When s'(t) is zero, the car is stopped. D. If s'(t) is zero, then s(t) must be zero. QE. The function s' represents the acceleration of the car. OF. The function s' represents the velocity of the car. G. When s'(t) is positive, the car's position is decreasing. OH. None of the above statements are true