What are the x-intercept and the y-intercept of the graph of 9x − 7y = −63?
A. x-intercept: 7; y-intercept: −9
B. x-intercept: −7; y-intercept: 9
C. x-intercept: 9; y-intercept: −7
D. x-intercept: −9; y-intercept: 7