Which of the Following Lead(s) to an Increase in the Rate

Question

Which of the following lead(s) to an increase in the rate of RBC production?
A) hypoxia
B) testosterone
C) erythropoietin
D) all of these choices

Accepted Answer

All of these choices lead to an increase in the rate of RBC production. Hypoxia stimulates the production of erythropoietin, which in turn increases RBC production. Testosterone also promotes RBC production, contributing to higher levels in males.