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: The main method for the preparation of ceto esters is the reaction known as:
Options: <1> Malonic synthesis <2> Acetoacetic synthesis. <3> Condensing of Claisen. <4> Perkin reaction. <5> Hofmann reaction.
[A]: 3

[Q]: 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.
[A]: 2

[Q]: Question: The Amercian Psychiatric Association (1994) defined mental illness as:
Options: <1> A syndrome that has psychological or behavioral manifestations associated with an alteration of functioning secondary to a social, psychological, genetic, physicochemical or biological anomaly. <2> A disorder limited exclusively to the person who suffers. <3> Acceptance by the patient of their actions. <4> The possibility of the person to cope with stress. <5> A disease that confines people to asylums and asylums.
[A]:
1