State which of the following statement is true ?
A. The line koining the points (1,2,3) and (1,5,3) makes angle `(pi)/(2)` with the positive y-axis.
B. The line joining the points (1,-1,0) and (2,-1,0) is parallel with the positive x-axis.
C. The angle between the lines `(x-5)/(7)=(y+2)/(-5)=(z-2)/(1)` and `(x-1)/(1)=(y)/(2)=(z-1)/(3)` is `(pi)/(3)`
D. The anlge between the lines `2x=3y=-z` and `6x=-y=-4z` is `(pi)/(4)`.