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