based on the graph below, which of the following statements is true? select one:
a. has a derivative that is zero at two values of x, one is a local maximum on the interval while the other is neither a local maximum nor a minimum. b. has a derivative that is zero at two values of x, both being local maxima. c. has a derivative that is zero at one value of x where it is a local minimum. d. has a derivative that is zero at two values of x, one is a local minimum on the interval while the other is neither a local maximum nor a minimum. e. has a derivative that is zero at two values of x, one is a local maximum while the other is a local minimum.