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: The anterior pituitary gland: 
 Options:  <1> It is part of the hypothalamus. <2> It is regulated hormonally. <3> It communicates with the neurohypophysis. <4> It releases ADH and oxytocin. <5> It is formed by neurons.

SOLUTION: 2

PROBLEM: Question: The most frequent complication of astragalus neck fractures is: 
 Options:  <1> Reflex algodystrophy. <2> Vicious consolidation <3> Pseudoarthrosis <4> Osteonecrosis. <5> Neurological injury of the posterior tibial.

SOLUTION:
4