Which of the following best describes the plot below?

• A. Scores (out of $100$) on a challenging math quiz
• B. Daily high temperatures (in ${}^{\circ }\text{F}$) recorded over two weeks in a mild climate
• C. Ages (in years) of participants in a kindergarten class
• D. Time (in minutes) it takes for students to walk from their dorm to the library

Answer: (D)