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: Consider Input: 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.

Output: 3


Input: Consider Input: Question: The reaction of cyclopentene with an aqueous solution of bromine at 0 ° C originates: 
 Options:  <1> trans-1,2-dibromocyclopentane. <2> cis-2-bromocyclopentanol. <3> trans -2-bromocyclopentanol. <4> trans -1,2-cyclopentanediol. <5> cis-1,2-dibromocyclopentane.

Output: 3


Input: Consider Input: Question: Insulin regulates the synthesis of fatty acids: 
 Options:  <1> Activating phosphorylase <2> Dephosphorylating acetyl CoA carboxylase. <3> Inhibiting the formation of malonyl CoA. <4> Controlling the carnitine-acyl CoA transferase activity. <5> Activating the fatty acid synthetase.


Output: 2