Arrange the following carbanions in decreasing order of stability:
`""^(Ө)underset(" "(I))(CH_(2))-Cl " """^(Ө)underset(" "(II))(CH_(2))-CN" """^(Ө)underset(" "(III))((CH_(2))-NO_(2)" """^(Ө)underset(" "(IV))(CH_(2))-CH_(3)`
A. `III gt II gt IV gt I`
B. `III gt II gt I gt IV`
C. `III gt I gt II gt IV`
D. `II gt III gt I gt IV`