Considering their chemical composition, explain why butter (a type of fat) tends to solidify in the refrigerator, while olive oil remains liquid.

• A. Olive oil contains more saturated fatty acids, while butter contains more unsaturated fatty acids.
• B. Butter contains more saturated fatty acids, while olive oil contains more unsaturated fatty acids.
• C. Butter contains more water than olive oil.
• D. Olive oil contains more water than butter.

Answer: (B)