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 relation to the physiology of the complement system, one of the following statements is false: 
 Options:  <1> Most of its components are inactive. <2> Its mode of activation is similar to the coagulation cascade. <3> It is subject to strict control of regulatory mechanisms. <4> It is only activated by two different routes: the classical and the alternative. <5> During its activation, multimolecular complexes are formed.

SOLUTION: 4

PROBLEM: Question: The most common ectopic pregnancy occurs in: 
 Options:  <1> The fallopian tube. <2> The oviductal tube. <3> The cervix <4> The ovary <5> The abdomen.

SOLUTION: 1

PROBLEM: Question: Isoprene is: 
 Options:  <1> 2-methyl-1,3-butadiene. <2> 2-methyl-2-butene. <3> 2-methyl-1-butene. <4> 2-ethyl-1,3-butadiene. <5> 2-ethyl-2-butene.

SOLUTION:
1