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: Which of the following staining techniques is important in the diagnosis of infections caused by Corynebacterium diphtheriae? 
 Options:  <1> The capsule staining. <2> Staining of metachromatic granules. <3> The acid-alcohol resistance stain. <4> Negative staining <5> The staining of endospores.
2

Question: Gallium is the element that is under the aluminum in group 13 of the periodic table. Thus: 
 Options:  <1> It burns in oxygen giving Ga2O. <2> It is stable to air due to a protective oxide layer. <3> It dissolves very quickly in nitric acid. <4> It is not soluble in basic water with hydrogen evolution. <5> It has a melting point a little higher than aluminum.
2

Question: One of the following effects is characteristic of morphine consumption: 
 Options:  <1> Mydriasis. <2> Eye flushed. <3> Excessive tearing. <4> Miosis <5> Increased intraocular pressure.

4