Task: Question Answering
Input (English): 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.
Output (English): 5