instruction:
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:
Question: In the receptor-mediated endocytosis intervenes: 
 Options:  <1> Only the clathrin. <2> Only the adaptin. <3> Adaptine and clathrin. <4> Chaperones <5> Only the proteins of the membrane.
answer:
3


question:
Question: Which of the following molecules has a simple covalent bond? 
 Options:  <1> C2. <2> N 2 <3> O 2 <4> O 3. <5> F 2
answer:
5


question:
Question: Indicate which of the following statements about vascular smooth muscle is FALSE: 
 Options:  <1> Its main function is to maintain the tone of the vessels. <2> It is contracted by an increase in the intracellular calcium concentration. <3> Its contraction is controlled by the binding of calcium to troponin. <4> Its tone is controlled by the autonomic nervous system. <5> The endothelium modulates vascular smooth muscle tone.
answer:

3