The arrangement of `(CH_(3))_(3)C-, (CH_(3))_(2)CH-, CH_(3)CH_(2^(-))` when attached to benzene or unsaturated group in increasing order of inductive effect is
A. `(CH_(3))_(3)C- lt (CH_(3))_(2)CH- lt CH_(3)CH_(2^(-))`
B. `CH_(3)CH_(2) - lt (CH_(3))_(2)CH- lt (CH_(3))_(3)C-`
C. `(CH_(3))_(2)CH - lt (CH_(3))_(3)C- lt CH_(3)CH_(2)-`
D. `(CH_(3))_(3)C- lt CH_(3)CH_(2)- lt (CH_(3))_(2)CH-`