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: The thalamus is part of: 
 Options:  <1> The diencephalon <2> The mesencephalon. <3> The telencephalon. <4> The metencephalon. <5> The bulb.
