Hormones of pituitary gland are

Options

A. All proteins
B. All steroids
C. Some steroids and some proteins
D. Complex substances formed from proteins, steroids and carbohydrates

Answer

### Step-by-Step Solution:

1. **Identify the Gland**: The question asks about the hormones of the pituitary gland. The pituitary gland is located at the base of the brain and is often referred to as the "master gland" because it regulates many bodily functions by releasing hormones.

2. **Understand the Types of Hormones**: The hormones secreted by the pituitary gland can be categorized into two main groups: those secreted by the anterior pituitary and those secreted by the posterior pituitary.

3. **List the Hormones**:
- **Anterior Pituitary Hormones**:
- ACTH (Adrenocorticotropic Hormone)
- TSH (Thyroid Stimulating Hormone)
- LH (Luteinizing Hormone)
- FSH (Follicle Stimulating Hormone)
- **Posterior Pituitary Hormones**:
- Vasopressin (also known as Antidiuretic Hormone, ADH)
- Oxytocin

4. **Determine the Nature of Hormones**: The hormones produced by the pituitary gland are primarily proteins. Proteins are made up of amino acids linked together by peptide bonds.

5. **Evaluate the Options**: The options provided in the question are:
- All proteins
- All steroids
- Some steroids and some proteins
- A complex substance formed from proteins, steroids, and carbohydrates

6. **Select the Correct Answer**: Since all hormones secreted by the pituitary gland are protein in structure, the correct answer is "All proteins". The other options are incorrect because:
- The pituitary gland does not secrete steroid hormones.
- The hormones are not a complex substance formed from proteins, steroids, and carbohydrates.

### Final Answer:
**The hormones of the pituitary gland are all proteins.**

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