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: They are receptors involved in phagocytosis dependent on opsonization: 
 Options:  <1> KIR. <2> TLR1. <3> MR. <4> CR1 <5> TCR
