Which of the following are not the effects of Parathyroid hormone?
(a) Stimulates the process of bone resorption
(b) Decreases Ca²⁺ level in blood
(c) Reabsorption of Ca²⁺ by rental tubules
(d) Decreases the absorption of Ca²⁺ from digested food
(e) Increases metabolism of carbohydrates
Choose the most appropriate answer from the options given below:

Parathyroid hormone increases blood calcium level by stimulating bone resorption, promoting absorption of calcium from GI tract and promoting reabsorption of calcium from renal tubules. 

It increases Ca²⁺ level in the blood. 

It promotes the formation of calcitriol which increases the absorption of Ca²⁺ from digested food. 

It has no role in the regulation of metabolism of carbohydrates.