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: Hyponatremia is part of the clinical picture of: 
 Options:  <1> Addison's disease <2> Central diabetes insipidus. <3> Nephrogenic insipid diabetes. <4> Mellitus diabetes. <5> Febrile states.
