Detailed Instructions: 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: Which of the following is a more reliable marker of malnutrition in the elderly patient?
Options: <1> Weight loss of 1 kg in the last month. <2> Body mass index greater than 24. <3> Difficulty swallowing, chewing and / or lack of appetite. <4> Albumin 4.5 gr / dl. <5> Mini Nutritional Assessment less than 17.
Solution:
5