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: A 70-year-old patient diagnosed three years ago with multiple myeloma who is in a period of neutropenia after a cycle of chemotherapy. It enters due to fever, cough and yellowish expectoration. The chest radiograph shows a condensation image in the right hemithorax. The most likely diagnosis is: 
 Options:  <1> Post-chemotherapy toxic pneumonitis. <2> Pneumococcal pneumonia <3> Pneumonia due to aspergillus. <4> Viral pneumonia due to community respiratory virus. <5> Cytomegalovirus pneumonia.
