Name the following compound. Give both an IUPAC and a common name if possible.

• CH₃COCH₂CH₃

• A. IUPAC name: pentan-2-one
  Common name: methyl ethyl ketone
• B. IUPAC name: propan-2-one
  Common name: butyl ketone
• C. IUPAC name: butan-2-one
  Common name: ethyl methyl ketone
• D. IUPAC name: butan-2-ol
  Common name: butyl ketone

Answer: (C)