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'.

Ex Input:
Question: The CD40 ligand molecule (CD40L or CD154) is expressed in:
Options: <1> Virgin T lymphocytes. <2> Activated T lymphocytes <3> NK lymphocytes. <4> Virgin B lymphocytes. <5> B activated lymphocytes.

Ex Output:
2

Ex Input:
Question: It has a recessive inheritance linked to the X chromosome the:
Options: <1> Acatalasemia <2> Hemophilia A. <3> Rett syndrome. <4> Cystic fibrosis, <5> Hypophosphatemia

Ex Output:
2

Ex Input:
Question: Thermolabile (LT) and thermostable (ST) enterotoxins are responsible for diarrhea caused by some strains of:
Options: <1> Salmonella enterica <2> Vibrio cholerae <3> Campylobacter jejuni. <4> Yersinia enterocolitica. <5> Escherichia coli

Ex Output:
5