Arrange the following in correct sequence of steps involved in the regulation of blood calcium levels: (a) Parathyroid hormone (PTH) release (b) Low blood Ca²⁺ levels (c) Ca²⁺ reabsorption from renal tubules (d) Ca²⁺ absorption from digested food
- A(b), (a), (c), (d)
- B(a), (b), (c), (d)
- C(b), (c), (a), (d)
- D(a), (c), (b), (d)
✓ Correct answer: A
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