The correct option is C Thyroxine from thyroid
Hormone
controlling metabolism is thyroxine from thyroid. This hormone is released
under the influence of TSH, released by anterior pituitary. Iodine is essential
for the normal rate of hormone synthesis in thyroid. Deficiency of iodine in
diet results in low secretion of thyroid hormone. Thyroxine hormone controls
growth, mental faculties and tissue differentiation. It controls the metabolism
of proteins, fats and carbohydrates and hence regulates the growth of the body
tissues. These hormones play an important role in the regulation of the basal
metabolic rate (BMR).