Every morning, Gabe explains to Vivian what her tasks for that day will be. Which of the following best demonstrates that Vivian is listening? O A. Vivian refrains from asking questions while Gabe is talking. O B. Vivian takes careful notes while Gabe is talking. O C. Vivian nods her head while Gabe is talking. O D. Vivian looks away while Gabe is talking.