A teacher gives an unannounced, three-question true-false pop quiz, with two possible answers to each question. Complete parts (a)-(b) below. a. Use a tree diagram to show the possible response patterns, in terms of whether any given response is correct or wrong. Choose the correct answer below. (1 pt) O A. O B. O c. OD. C W C W W W W (1 pt) b. An unprepared student guesses all the answers randomly. Find the probability the student's first and third answers are correct and his second answer is wrong. (1 pt) The probability of the student's answers being CWC is