Arrange the correct sequence for mechanism of chlorination of methane.
I. `CH_(4)+Cl^(*) overset(hv)rarroverset(*)CH_(3)+H-Cl`
II. `Cl-Cl overset(hv)rarr 2overset(*)Cl`
III. `overset(*)CH_(3)+Cl_(2)rarrCH_(3)-Cl+Cl^(*)`
(IV) `overset(*)Cl+overset(*)Cl rarrCl-Cl`
`overset(*)CH_(3)+overset(*)CH_(3) rarr CH_(3)-CH_(3)`
Choose the correct option is
A. II, I, III and IV
B. I, II, III and IV
C. IV, III, II and I
D. II, III, I and IV
