year, the scores for Lest we parts (aj (a) Find the probability that a randomly selected high school student who took the reading portion of the test has a score that is less than 20. The probability of a student scoring less than 20 is (Round to four decimal places as needed.) (b) Find the probability that a randomly selected high school student who took the reading portion of the test has a score that is between 14.7 and 27.7. The probability of a student scoring between 14.7 and 27.7 is (Round to four decimal places as needed.) (c) Find the probability that a randomly selected high school student who took the reading portion of the test has a score that is more than 31.9. The probability of a student scoring more than 31.9 is (Round to four decimal places as needed.) (d) Identify any unusual events. Explain your reasoning. Choose the correct answer below. A. The events in parts (a) and (b) are unusual because its probabilities are less than 0.05. OB. None of the events are unusual because all the probabilities are greater than 0.05. O C. The event in part (c) is unusual because its probability is less than 0.05. OD. The event in part (a) is unusual because its probability is less than 0.05.