An outbreak of illness occurs in a large apartment complex, characterized by low-grade fevers, cough, malaise, and diarrhea. In one patient, a Gram stain of induced sputum reveals several...

An outbreak of illness occurs in a large apartment complex, characterized by low-grade fevers, cough, malaise, and diarrhea. In one patient, a Gram stain of induced sputum reveals several gram-negative rods and many neutrophils.What is the antibiotic of choice for this illness?

A. Penicillin G

B. Ciprofloxacin