Determine whether the distribution is a discrete probability distribution. P(x) Pi 0.21 0.28 0.02 0.28 0.21 awntax Is the distribution a discrete probability distribution? Why/.7 Choose the correct answer below. A. No, because the total probability is not equal to 1. O B. Yes, because the distribution is symmetric. O C. No, because some of the probabilities have values greater than 1 or less than 0. O D. Yes, because the probabilities sum to 1 and are all between 0 and 1, inclusivet