Which one of the following is correct order of the stability of carbanions?
(a) -C(CH3)3 > -CH(CH3)2 > -CH2 -CH3 > -CH3
(b) -CH3 > -CH2 -CH3 > -CH(CH3)2 > -C(CH3)3
(c) -CH(CH3), > -CH3 > -CH2 -CH3 > -C(CH3)3
(d) -CH2 -CH3 > -CH(CH3)2 > -CH3 > -C(CH3)3
