________ is a thyroid hormone which controls the balance of calcium in the body.

A. Calcitonin

B. Thyroxine

C. Calmodulin

D. All of these

Answer: Option A

Solution(By Examveda Team)

Calcitonin is a hormone that is produced in humans by the parafollicular cells (commonly known as C-cells) of the thyroid gland. Calcitonin is involved in helping to regulate levels of calcium and phosphate in the blood, opposing the action of parathyroid hormone.

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