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: Why is the presence of lentigo in older people? 
 Options:  <1> Cell dehydration <2> Small hemorrhages due to capillary fragility. <3> Hyperplasia of intraepidermal melanocytes. <4> Deficiency of collagen and elastin. <5> Lipofuscin deposits.
