Comparing arachidic acid (a saturated fatty acid) and eicosapentaenoic acid (a polyunsaturated fatty acid), both containing 20 carbon atoms, why does arachidic acid have a significantly higher melting point?

• A. Because arachidic acid has more hydrogen atoms.
• B. Because arachidic acid has double bonds and branching.
• C. Because eicosapentaenoic acid is polyunsaturated.
• D. Because eicosapentaenoic acid has a shorter hydrocarbon chain.

Answer: (C)