Arrange the following compounds in order of increasing dipole moment .
Toluene `(I)` m-dichlorobenzene `(II)`
o-dichlorobenzene `(III)` . P-dichlorobenzene `(IV)` .
A. `Ilt IV lt II lt III`
B. `IV lt I lt II lt III`
C. `IV lt I lt III lt II`
D. `IV lt II lt I lt III`
