Consider the lines L₁ and L₂ given by
L₁: (x-1)/2 = (y-3)/1 = (z-2)/2, L₂: (x-2)/1= (y-2)/2 = (z-3)/3

A line L₃ having direction ratios 1, –1, –2, intersects L₁ and L₂ at the point P and Q respectively. The thelength of the line segment PQ is
A. 3√2
B. 4
C. 2√6
D. 4√3