TASK DEFINITION: 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'.
PROBLEM: Question: In the activation of the serum complement, the assembly of the Membrane Attack Complex begins with: 
 Options:  <1> C9 <2> C5b. <3> C3a. <4> C6 <5> C8.

SOLUTION: 2

PROBLEM: Question: A 24-year-old boy who, after 3 days of high-risk sexual contact, has numerous pustular, small, very pruritic lesions that progress to minute erosions affecting the entire glans and inner face of the prepuce. Indicate which is, among the following, the most probable diagnostic orientation: 
 Options:  <1> Genital candidiasis <2> Chancroid. <3> Secondary syphilis <4> Balanitis by Trichomonas. <5> Fungal infection by dermatophytes.

SOLUTION: 1

PROBLEM: Question: What is allodynia ?: 
 Options:  <1> Painful sensation triggered by non-painful stimuli. <2> Abnormal sensation, but not painful. <3> Sensation in which the patient has a high threshold of stimulation. <4> Tingling or numbness <5> Painful sensation increased in front of a painful stimulus.

SOLUTION:
1