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: Azidothymidine (AZT) used against the human immunodeficiency virus: 
 Options:  <1> It binds to the cellular RNA polymerase and blocks transcription. <2> It binds to the early promoter of the virus and prevents its recognition by RNA polymerase. <3> Antagonizes the phosphorylation of nucleosides, thus inhibiting the synthesis of viral DNA. <4> Blocks the transport of thymidine to the cellular interior. <5> Inhibits transcriptase

Output: 5


Input: Consider Input: Question: With what aspect does the difficulty of the elderly relate to solve new problems ?: 
 Options:  <1> Creativity. <2> Motivation. <3> Verbal fluency. <4> Memory. <5> Response time.

Output: 5


Input: Consider Input: Question: 𝐸𝑎 According to the Arrhenius equation, k = 𝐴𝑒 𝑅𝑇 
 Options:  <1> The kinetic constant (k) decreases with increasing temperature. <2> The pre-exponential factor (A) is dimensionless. <3> In reactions with higher activation energy (Ea), the kinetic constant (k) depends enormously on the temperature. <4> The pre-exponential factor (A) and the kinetic constant (k) are inversely proportional. <5> The Arrhenius parameters are the kinetic constant (k) and the preexponential factor (A).


Output: 3