Ignoring stereochemistry, what is the correct IUPAC name for the following Fischer profection? a) 3,4-dibromo-2-chloro-4-ethylbutane c) 3,4-dibromo-5-chioro-4-methyihexane d) 3,4-dibromo-2-chloro-3-methyilhexane b) 2-chloro-3,4-dibromo-3-methylhexane