The hormone which controls the process of burning of fats, proteins, and carbohydrates and liberates energy in the body is:

Options

A. cortisol
B. thyroxine
C. adrenaline
D. insulin

Explanation

To solve the question regarding the hormone that controls the burning of fats, proteins, and carbohydrates while liberating energy in the body, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Function of the Hormone**:
We need a hormone that regulates metabolism and is involved in the burning of fats, proteins, and carbohydrates to release energy.

2. **Consider the Options**:
We will analyze the hormones provided in the options:
- Cortisol
- Thyroxine
- Adrenaline
- Insulin

3. **Evaluate Each Hormone**:
- **Cortisol**: This is a steroid hormone that helps manage stress and does not primarily regulate the metabolism of fats, proteins, and carbohydrates. Therefore, it is not the correct answer.
- **Thyroxine**: This hormone is released by the thyroid gland and plays a significant role in regulating metabolism. It helps in the metabolism of fats, proteins, and carbohydrates, making it a strong candidate for the correct answer.
- **Adrenaline**: This hormone is produced in response to stress or anxiety and is not primarily involved in the metabolic processes of fats, proteins, and carbohydrates. Thus, it is not the correct answer.
- **Insulin**: While insulin is important for glucose metabolism, it primarily facilitates the conversion of glucose to glycogen and does not directly control the burning of fats and proteins. Therefore, it is also not the correct answer.

4. **Conclusion**:
After evaluating all the options, the hormone that controls the process of burning fats, proteins, and carbohydrates and liberates energy in the body is **Thyroxine**.

### Final Answer:
The hormone which controls the process of burning of fats, proteins, and carbohydrates and liberates energy in the body is **Thyroxine**.

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