How would you explain the main difference between the Cahn Ingold Prelog system and Fisher's convention?

• A. Cahn Ingold Prelog system is simpler than Fisher's convention.
• B. Cahn Ingold Prelog system uses atomic numbers for priority, while Fisher's convention uses hydroxyl orientation.
• C. Cahn Ingold Prelog system is used for amino acids, while Fisher's convention is used for carbohydrates.
• D. Cahn Ingold Prelog system is more accurate than Fisher's convention.

Answer: (B)