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'.

Question: The main function of the cerebellum is:
Options: <1> Coordinate complex muscle movements. <2> Coordinate endocrine and nervous responses. <3> Control digestion, circulation and breathing. <4> Control the wake-sleep cycle. <5> Control the intake.
1