View the graphs of y, y', and y" together on a graphing calculator. State how the graphs of y' and y" are related to the graph of y. y=x -75x Choose the graph that displays y, y', and y". Each graph is shown in a [ - 20,20,2] by [ - 1000, 1000, 100] viewing window. O A. O B. O C. Which choice best describes the relationship of y' and y" to y? O A. At x =5, y' = 0 and y" 0. This is a local maximum of y. For x 0, since y" is greater than zero, y is concave down. O B. At x = 5, y' = 0 and y" > 0. This is a local minimum of y. At x= - 5, y' =0 and y" 0, since y" is greater than zero, y is concave up. O C. Atx= 5, y' = 0 and y" 0. This is a minimum of y. For x 0, since y" is greater than zero, y is concave down. O D. At x = 5, y' = 0 and y"> 0. This is a local maximum of y. At x = - 5, y' = 0 and y" 0, since y" is greater than zero, y is concave up