Suppose 5 students have the following scores, given as quiz 1 score, quiz 2 score:

Student 1:10, 8

Student 2:9, 8

Student 3:6, 8

Student 4:5, 9

Student 5:8, 7

The regression analysis shows r = .76. The equation of the best fitting regression line is y = 4 + .5xwhere x = quiz 1 score (in points) and y = quiz 2 score (in points).What is the residual for Student 5?

A. 1

B. None of the other choices is correct

C. -1

D. 8