Determine and explain which fatty acid has a lower melting point: arachidonic acid or palmitic acid.

• A. Palmitic acid has a lower melting point due to its straight-chain structure, which allows for tight packing.
• B. Arachidonic acid has a lower melting point since its double bonds introduce kinks, which hinders it from solidifying.
• C. Palmitic acid has a lower melting point due to its straight-chain structure, which hinders it from solidifying.
• D. Arachidonic acid has a lower melting point since its double bonds introduce kinks, which allows for tight packing.

Answer: (B)