Arrangement of (CH3)3C–, (CH3)2CH –, CH3 – CH2 – when attached to benzyl or an unsaturated group in increasing order of inductive effect is
(a) (CH3)3C – < (CH3)2CH – < CH3–CH2
(b) CH3–CH2 – < (CH3)2CH – < (CH3)3C –
(c) (CH3)2–CH – < (CH3)3C – < CH3–CH2
(d) (CH3)3C – < CH3–CH2 – < (CH3)2CH –
