The adverse reactions of fluoroquinolones including the following EXCEPT: A: Tendinitis and tendon rupture B: Effects on bony structure and teeth C: Allergic effect: skin rash, phototoxicity D: Cardiac arrhythmias: QT interval prolongation E: Hepatotoxicity and nephrotoxicity

Which one of the following statements is false? A: Tetracycline can depress bone growth and produce permanent discoloration of teeth in children under 8 years old B: Fluoroquinolones are active against both gram-negative and gram-positive organisms C: Legionella, Chlamydia, Mycoplasma are sensitive to macrolides D: Macrolides may be used in patients who are allergic to penicillins E: Penicillin G can be kept in solution at room temperature