The scatter plot shows the number of hours 15 students spent studying for a 20-item quiz and their quiz scores. Which BEST describes the data?

A) The data cluster along a line and there is no outlier.
B) There is no association between the time the students spent studying and their quiz scores.
C) There are clusters around the 1 hour and the 2 hours of studying. The point (3.5, 20) is an outlier.
D) There is a nonlinear association between the time the students spent studying and their quiz scores. The point (3.5, 20) is an outlier.