The direction ratios of the line perpendicular to the lines x − 7/2 = y + 17/− 3 = z − 6/ 1 and x + 5 /1 = y + 3 /2 = z − 4 /− 2 are proportional to
A. 4, 5, 7
B. 4, –5, 7
C. 4, –5, –7
D. –4, 5, 7