Definition: 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: Question: In a liver transplant patient who is receiving immunosuppression with tacrolimus, which of the following antibiotics markedly increases the levels of the immunosuppressant and should therefore be avoided? 
 Options:  <1> Amoxicillin clavulanic. <2> Ciprofloxacin <3> Erythromycin. <4> Cefuroxime <5> Norfloxacin.
