In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

Question: What degree of mental disability corresponds to an IQ of thirty-six? 
 Options:  <1> Mental disability limit. <2> Mild mental disability. <3> Moderate mental disability. <4> Severe mental disability. <5> Deep mental disability.
3

Question: The treatment of 1-hexyne with 1 mole of hydrogen bromide results in: 
 Options:  <1> 1-bromo-1-hexene. <2> 1-bromo-2-hexene. <3> 1-bromo-3-hexene. <4> 2-bromo-1-hexene. <5> 2-bromo-2-hexene.
4

Question: Point out the correct answer regarding the regulation of hematopoiesis: 
 Options:  <1> Altitude inhibits hematopoiesis. <2> Erythropoietin inhibits hematopoiesis. <3> Hypoxia stimulates the production of erythropoietin. <4> Erythropoietin is synthesized in the liver. <5> Erythropoietin does not influence the production of red blood cells.

3