Explanation:

- Undernutrition: This form of malnutrition occurs when the intake of nutrients and energy is insufficient to meet an individual's requirements. It can lead to stunted growth, wasting, and deficiencies in essential vitamins and minerals.

- Overnutrition: This form of malnutrition occurs when there is an excess intake of nutrients, particularly calories, leading to obesity and associated conditions such as type 2 diabetes, heart disease, and certain cancers.

- Both undernutrition and overnutrition are recognized as forms of malnutrition since both involve an imbalance in the consumption and utilization of nutrients and energy.

Correct Answer: 3, Both