The increasing order of hyperconjugative effect ofCH_(3)-,C_(2)H_(5)-,(CH_3)_(2)CH-" and "(CH_3)_(3)C- when one of these is attached to benzene ring is

The increasing order of hyperconjugative effect ofCH_(3)-,C_(2)H_(5)-,

1.	The increasing order of hyperconjugative effect ofCH_(3)-,C_(2)H_(5)-,(CH_3)_(2)CH-" and "(CH_3)_(3)C- when one of these is attached to benzene ring is
Answer» `CH_(3),C_(2)H_(5),(CH_3)_(2)CH" and "(CH_3)_(3)C` `(CH_3)_3C,(CH_2)CH,CH_3,C_2H_5` `(CH_2)_2CH,(CH_3),CH_3C_2H_5` NONE of the above ANSWER :A