______ is a hormone produced by the kidneys to stimulate the production of red blood cells. It ensures normal oxygen levels in the mother and fetus.

Correct option is D

Ans: (d) Erythropoietin Sol. Erythropoietin (EPO) is a hormone primarily produced by the kidneys that stimulates the production of red blood cells in the bone marrow. This hormone plays a crucial role in ensuring that the body maintains normal oxygen levels by increasing the number of red blood cells, which are responsible for carrying oxygen throughout the body. EPO is especially important during pregnancy as it ensures adequate oxygen supply to both the mother and the fetus.
Explanation of each option:
· (a) Cortisol: Cortisol is a hormone produced by the adrenal glands that helps regulate metabolism, reduce inflammation, and manage stress. It does not directly stimulate red blood cell production.
· (b) Thyroxine: Thyroxine is a hormone produced by the thyroid gland that regulates metabolism. While it affects overall growth and development, it does not stimulate red blood cell production.
· (c) Insulin: Insulin is a hormone produced by the pancreas that regulates blood sugar levels. It is not involved in the production of red blood cells.
· (d) Erythropoietin: Correct answer. Erythropoietin is the hormone responsible for stimulating the production of red blood cells, ensuring that both the mother and the fetus have adequate oxygen levels during pregnancy.