All of the following names are incorrect or incomplete. In each case, draw the structure (or a

Question:

All of the following names are incorrect or incomplete. In each case, draw the structure (or a possible structure) and name it correctly.
(a) 2-methylethylpentane
(b) 2-ethyl-3-methylpentane
(c) 3-dimethylhexane
(d) 4-isobutylheptane
(e) 2-bromo-3-ethylbutane
(f) 2-diethyl-3-methylhexane