Which fat is monosaturated?

• A. Olive Oil
• B. Butter
• C. Coconut Oil
• D. Flax seeds

Answer: (A)

Monounsaturated fats have one double bond in their fatty-acid chains, which makes them typically liquid at room temperature and more favorable for heart health when used instead of saturated fats. Olive oil is particularly rich in oleic acid, a prime monounsaturated fat, so it stands out as the monosaturated option here. Butter and coconut oil contain mostly saturated fats, while flax seeds are high in polyunsaturated fats (not mono). So olive oil is the monosaturated choice.