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: The fear or belief of suffering an important disease, which arises in the subject from the erroneous interpretation of their bodily symptoms, is the nuclear characteristic of: 
 Options:  <1> The conversion disorder. <2> Hypochondria. <3> Panic disorder <4> The Depression <5> Somatization
2

Question: The RISC complex (RNA-induced silencing complex) of RNA silencing based on interference RNA: 
 Options:  <1> It degrades the guide strand of the small interfering RNA molecules (siRNA). <2> It recognizes defective proteins and promotes their degradation. <3> It has a structure similar to the ribosome, formed by numerous RNAs and proteins. <4> It is formed, among others, by the Dicer protein, a type III ribonuclease. <5> It is part of both the interference mechanism of the siRNA and the microRNA.
5

Question: Which Clostridium genus is a producer of enterotoxin A and cytotoxin B responsible for diarrhea (pseudomembranous colitis) associated with treatment with antimicrobials ?: 
 Options:  <1> Clostridium perfringens. <2> Clostridium difficile. <3> Clostridium botulinum. <4> Clostridium novyi. <5> Clostridium histolyticum.

2