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: Medicine
Aldosterone is secreted by: 
Select and explain. 
A. Pituitary, B. Zona glomerulosa, C. Zona fasciculate, D. Adrenal medulla
B: Zona glomerulosa
Answer: B: Zona glomerulosa 
Explanation: Adrenal gland is divided into adrenal cortex and adrenal medulla, the cortex is further subdivided into 3 parts, listing them from outside to inside for production of different hormones.
Zona Glomeruosa : Mineralocorticoids
Zona Fasciculata : Glucocorticoids
Zona Reticuaris : Sex Steroids Also Know

Aldosterone : ↑Conn's
                      ↓Addisons
Cortisol : ↑Cushing syndrome
Sex Sterioids hyperplasia : ↑Congenital adrenal
                                            ↓ Hypogonadism
Medulla Tumour : Pheochrom cocytoma