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'.
Input: Question: Cognitive investigations of intelligence, and as regards the relationship between Reaction Time (RT) and Intellectual Quotient (IQ):
Options: <1> They have found positive associations of great magnitude. <2> They describe negative relationships with differences in magnitude, according to the studies. <3> They have found an absence of association between both constructs. <4> They have not received attention from the scientific community. <5> They start from the study of cultural differences in intelligence.
Output:
2