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: The virus (virusoid) of hepatitis D (agent δ) needs to co-infect with the hepatitis virus: 
 Options:  <1> TO. <2> B. <3> C. <4> AND. <5> G.

Output: 2


Input: Consider Input: Question: Naloxone is used in the treatment of poisoning with: 
 Options:  <1> Opiates <2> Benzodiazepines. <3> Barbiturates <4> Tricyclic antidepressants. <5> Digitálicos.

Output: 1


Input: Consider Input: Question: The recombinant DNA is: 
 Options:  <1> A DNA molecule that activates heterologous recombination. <2> A precursor messenger RNA molecule. <3> A DNA molecule composed of segments covalently linked from two or more sources. <4> A diploid DNA molecule. <5> A multienzyme complex of DNA polymerases covalently linked.


Output: 3