Final answer:
Yani's best advice for the children to have a balanced diet would be to try to eat a variety of differently colored foods, thus ensuring a mix of essential nutrients from fruits, vegetables, grains, proteins, and dairy. Whole foods should be prioritized over processed foods, and physical activity should accompany healthy eating habits.
Step-by-step explanation:
Yani would BEST advise the elementary school children to have a balanced diet by suggesting they try to have many different colors of foods (option C). This approach encourages eating a variety of fruits and vegetables, which naturally provides a wide array of vital nutrients. Additionally, variety is one of the key factors of a healthful diet, along with adequacy, calorie control, moderation, and balance. It's important for children to choose whole foods over processed food as whole foods contain essential vitamins, minerals, protein, carbohydrates, fats, and fiber for good health.
To further support a balanced diet, children should be encouraged to eat from all food groups, including vegetables, fruits, grains, protein foods, and dairy, with a focus on whole grains, lean proteins, low-fat dairy products, and healthy unsaturated oils. Moreover, a healthy diet is about balance and moderation, not completely excluding treats or certain food groups unless medically necessary.
Physical activity and healthy eating also go hand in hand as a fundamental part of a child's education, ensuring they have enough energy for growth and day-to-day activities. Therefore, Yani can also emphasize the importance of staying active along with maintaining balanced nutrition.