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'.

Example Input: Question: Which of the following pairings between anticoagulant drug and mechanism of action is INCORRECT? 
 Options:  <1> Heparin - cofactor of antithrombin III. <2> Acenocoumarol - inhibits vitamin K epoxide reductase. <3> Dabigatran - inhibits thrombin. <4> Rivaroxaban - inhibits factor Xa. <5> Warfarin - inhibits the absorption of vitamin K.
Example Output: 5

Example Input: Question: A 20-year-old boy goes to the emergency room for fever of 39ºC, chills, papules and hemorrhagic pustules on the distal extensor surfaces of the extremities and arthritis of the knee. What is your diagnosis of initial suspicion? 
 Options:  <1> Rheumatoid arthritis. <2> Reiter syndrome. <3> Urica Drop <4> Gonococcal arthritis. <5> Vasculitis of Cogan.
Example Output: 4

Example Input: Question: The target of the aminoglycoside antibacterials is the: 
 Options:  <1> DNA polymerase <2> Transpeptidation of peptidoglycan. <3> 30S subunit of the ribosome. <4> RNA polymerase <5> DNA gyrase.
Example Output:
3