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: Which of the following factors influences the glomerular filtration rate (GFR) ?: 
 Options:  <1> Blood pressure <2> The renal blood flow. <3> Self-regulation by myogenic responses and tubuloglomerular feedback. <4> Hormones such as Angiotensin II and neurons of the sympathetic nervous system. <5> All are correct.
