Points A and B lie on the graph of y=\log _{2} x. The midpoint of \overline{A B} is (6,2). What is the positive difference between the x-coordinates of A and B?
Answer Choices
A. 2 \sqrt{11}
B. 4 \sqrt{3}
C. 8
D. 4 \sqrt{5}
E. 9
Points A and B lie on the graph of y=\log _{2} x. The midpoint of \overline{A B} is (6,2). What is the positive difference between the x-coordinates of A and B?
Answer Choices
A. 2 \sqrt{11}
B. 4 \sqrt{3}
C. 8
D. 4 \sqrt{5}
E. 9