The following racemic mixture of enantiomeric carboxylic acids was synthesized in the laboratory. Propose two methods for the separation of these enantiomers.

• A. Distillation and recrystallization
• B. Column chromatography and separation by diastereoisomeric salts
• C. Chiral chromatography and distillation
• D. Chiral chromatography and separation by diastereoisomeric salts

Answer: (D)