In the coordinate plane, line p has slope 8 and y-intercept (0,5). Line r is the result of dilating line p by a scale factor of 3 with center of dilation (0, 0).

What is the slope and y-intercept of line r?

A. Line r has slope 24 and y-intercept (0, 15).

B. Line r has slope 8 and y-intercept (0, 15).

C. Line r has slope 11 and y-intercept (0, 8).

D. Line r has slope 8 and y-intercept (0, 5).