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 mitochondrial genome: 
 Options:  <1> It is circular. <2> It is single-strand. <3> It encodes all mitochondrial proteins. <4> It is part of the nuclear DNA. <5> None of the above.
