A social scientist uses a survey to study how much time per day people spend talking on the phone. The variable given on the survey website measures this using the values 0, 1, 2, ..., 24, Complete parts a through c below. a. Explain how, in theory, talking is a continuous random variable. Choose the correct answer below. A. A person's focus while talking on the phone goes up and down as a continuous random variable. O B. Someone could talk for exactly 1 hour or for 1.8643 hours. O C. A person's enthusiasm for talking on the phone goes up and down as a continuous random variable. O D. Talking is something done all at once without interruption