Task: Question Answering
Input (English): Question: In what clinical situation would you use a combined antimicrobial treatment? 
 Options:  <1> In an acute pharyngotonsillitis in a child. <2> In a community pneumonia due to Mycoplasma pneumoniae in a teenager. <3> In an acute meningitis in an elderly patient. <4> In a postmenopausal patient with a recurrent urinary infection. <5> In a skin abscess in a young patient.
Output (English): 3