The Growth Hormone (Somatotrophin)
The growth hormone, also known as somatotrophin, is a crucial hormone in human physiology, primarily responsible for growth, metabolism, and cell repair.

Source of Growth Hormone
- The growth hormone is produced by the anterior pituitary gland, which is a small gland located at the base of the brain.
- It plays a significant role in stimulating growth, cell reproduction, and regeneration.

Functions of Growth Hormone
- **Stimulates Growth**: Promotes growth in bones and muscles during childhood and adolescence.
- **Metabolism Regulation**: Influences the metabolism of proteins, fats, and carbohydrates.
- **Cell Repair and Regeneration**: Aids in the repair of tissues and the regeneration of cells, which is vital for recovery from injuries.

Other Glands and Their Functions
- **Adrenal Gland**: Produces hormones like adrenaline and cortisol, important for stress response and metabolism.
- **Pancreas**: Produces insulin and glucagon, essential for regulating blood sugar levels.
- **Thyroid Gland**: Produces hormones that regulate metabolism, energy levels, and overall growth.

Conclusion
In summary, the growth hormone is specifically produced by the pituitary gland, making option 'C' the correct answer. Its vital functions underscore its importance in growth and metabolism, distinguishing it from hormones produced by other glands in the endocrine system. Understanding the role of the pituitary gland can provide insights into various health conditions related to growth and metabolism.