Arrange the following free radicals in order of stability
`underset(I)underset()((CH_(3))_(3)overset(cdot)C)" "underset(II)underset()((CH_(3))_(2)overset(cdot)CH)" "underset(III)underset()(CH_(3)overset(cdot)CH_(2))" "underset(IV)underset()(overset(cdot)CH_(3))`
A. `IgtIIgtIIIgtIV`
B. `IVgtIIIgtIIgtI`
C. `IIgtIIIgtIgtIV`
D. `IVgtIIgtIIIgtI.`