What is the correlation coefficient of the following data?

x: 1, 3, 5, 7, 9
y: 13, 43, 51, 76, 81

A. 0.97300135; weak
B. -0.97300135; strong
C. -0.97300135; weak
D. 0.97300135; strong

The correlation coefficient of the data is A. 0.97300135; weak.