The given figure represents the location of various endocrine glands in human body. Identify the glands marked as P, Q, R, S and T and select the incorrect statement regarding these.

• A. Gland P secretes the hormone thyroxine, which regulates growth and metabolism.
• B. Gland Q secretes the hormones corticosteroids and adrenaline, which regulate breathing, heart rate, carbohydrate metabolism and mineral balance.
• C. Glands S and T secrete the hormones which control secondary sexual characters in females and males respectively.
• D. Gland R secretes the hormone insulin, whose increased concentration leads to diabetes.