This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Which of the following gland is known as a master of endocrine gland orchestra: 
Select and explain. 
A. Pituitary gland., B. Hypothalamus, C. Thyroid gland., D. Adrenal gland.
A: Pituitary gland.
Answer: A: Pituitary gland. 
Explanation: It is so called because, it controls thyroid, mammary glands, adrenal cortex and gonads etc.