Introduction:
A well-balanced diet plays a crucial role in maintaining good health and overall well-being. It provides the necessary nutrients, vitamins, and minerals that our body needs to function properly. In this context, the statement "All of these" (option D) is correct as it encompasses the importance of carbohydrates and proteins, the significance of drinking plenty of water, and the inclusion of green vegetables in our daily diet.

Carbohydrates and Proteins:
- Carbohydrates are one of the main sources of energy for our body. They are found in foods such as grains, cereals, fruits, and vegetables. Including carbohydrates in our diet is essential for providing fuel to our muscles and brain.
- Proteins are essential for growth, repair, and maintenance of body tissues. They are found in foods like meat, fish, eggs, dairy products, legumes, and nuts. Consuming an adequate amount of protein is important for the development and functioning of our body.

Drinking Plenty of Water:
- Water is vital for our body as it helps in maintaining proper hydration levels, regulating body temperature, and carrying nutrients to cells. It also aids in digestion, circulation, and excretion of waste products.
- It is recommended to drink at least 8 glasses (about 2 liters) of water per day to ensure proper hydration. However, the actual water requirement may vary depending on factors such as age, sex, climate, and physical activity level.

Eating Green Vegetables:
- Green vegetables are packed with essential nutrients, vitamins, and minerals. They are low in calories and high in fiber, which helps in maintaining a healthy weight and proper digestion.
- Regular consumption of green vegetables provides vitamins such as vitamin A, C, and K, as well as minerals like iron and calcium. These nutrients are important for the proper functioning of various bodily systems, including the immune system and bone health.

Conclusion:
In conclusion, option D, which states "All of these," is the correct answer. It highlights the importance of including carbohydrates and proteins in our diet for energy and growth, the significance of drinking plenty of water for hydration and overall bodily functions, and the inclusion of green vegetables to obtain essential nutrients and maintain good health. Following a balanced diet that encompasses these factors is key to promoting overall well-being.

Balanced diet is the answer which you have not given