Answer:
A. Oil
Step-by-step explanation:
Carbohydrates are one of the three main types of nutrients (besides fats and proteins) our bodies use as a source of energy. Carbohydrate molecules consist of carbon, hydrogen, and oxygen atoms, usually with a hydrogen-oxygen atom ratio of 2:1 (just like in water). When we consume them, our bodies turn them into glucose, a simple carbohydrate our cells can use as food.
Besides glucose, some types of carbohydrates are galactose, sucrose, and lactose.
Oil is not an example of a carbohydrate. Most oils are unsaturated lipids that are liquid at room temperature.