The dc’s  of two lines are connected by the relation, $l+m+n=0, 4l$ is harmonic mean between $m \mathrm{and} n.$ Then connect the list given below 0

	LIST - I		LIST - II
A)	$\frac{{\mathrm{l}}_1}{{\mathrm{l}}_2}+\frac{{\mathrm{m}}_1}{{\mathrm{m}}_2}+\frac{{\mathrm{n}}_1}{{\mathrm{n}}_2}$	1)	$0$
B)	${\mathrm{l}}_1{\mathrm{l}}_2+{\mathrm{m}}_1{\mathrm{m}}_2+{\mathrm{n}}_1{\mathrm{n}}_2$	2)	$-3/2$
C)	${\mathrm{l}}_1{\mathrm{m}}_1{\mathrm{n}}_1+{\mathrm{l}}_2+{\mathrm{m}}_2+{\mathrm{n}}_2$	3)	$-1/2$
D)	${\text{l}}_1+{\mathrm{l}}_2+{\mathrm{m}}_1+{\mathrm{m}}_2+{\mathrm{n}}_1+{\mathrm{n}}_2$	4)	$-\frac{\sqrt{6}}{18}$