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'.

Q: Question: African trypanosomes (T. Rhodesiense and T. Gambiense) are transmitted by insects of the genus: 
 Options:  <1> Glossina <2> Triatoma. <3> Panstrongylus. <4> Rhodnius. <5> Phlebotomus.

A: 1
****
Q: Question: The water used in the preparation of medicated syrups must: 
 Options:  <1> Be sterile <2> Be purified or distilled water. <3> It is highly recommended that it contain dissolved carbon dioxide. <4> Contain dissolved calcium ions. <5> Contain an adequate proportion of magnesium ions.

A: 2
****
Q: Question: Why mechanism produces hyperprolactinemia haloperidol ?: 
 Options:  <1> Blockade of alpha 1 adrenergic receptors. <2> Blockade of alpha-2 adrenergic receptors <3> Blocking of H1 receivers. <4> Blockade of D2 receivers. <5> Blocking of 5-HT2 receptors.

A:
4
****