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: The arithmetic mean and not the median: 
 Options:  <1> It is a measurement of location. <2> All the values ​​of the sample are involved in its calculation. <3> It is dimensionless. <4> It is not influenced by extreme values. <5> None is correct.
