Analyze the differences between systematic and shorthand naming systems for a fatty acid with the structure CH3(CH2)7CH=CH(CH2)7COOH.

• A. Systematic: 9-octadecenoic acid; Shorthand: 18:1 Δ9
• B. Systematic: 9-hexadecenoic acid; Shorthand: 16:1 Δ9
• C. Systematic: 9-dodecenoic acid; Shorthand: 12:1 Δ9
• D. Systematic: 9-tetradecenoic acid; Shorthand: 14:1 Δ9

Answer: (A)