I promise brainliest and it very simple I promise....
Given the following values, which point would be considered an outlier?

X Y
1 0.9
2 2.1
3 3.2
4 3.9
5 7.4
6 5.8
7 7.2
8 8
9 9.1

A. (2, 2.1)
B. (9, 9.1)
C. (8, 8)
D. (5, 7.4)