23. What is the IUPAC name for the following compound? (A) (R)-2-bromo-2-methylcyclobutanone (B) (S)-2-bromo-2-methylcyclobutanone
(C) (R)-2-methyl-2-bromocyclobutanone (D) (S)-1-bromo-1-methyl-2-cyclobutanone
(E) (R)-1-bromo-1-methyl-2-cyclobutanone
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