What is the main difference between carbohydrates and fats?

Q. What is the main difference between carbohydrates and fats?

• the amount of oxygen is less in fats as compared to carbohydrates
• the amount of oxygen is more in fats as compared to carbohydrates
• the amount of oxygen is same in fats as compared to carbohydrates
• none of these

Answer: the amount of oxygen is less in fats as compared to carbohydrates