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You are caring for a patient whose leg is swollen and darkly discolored due to muscle degradation with gas-filled distension on the skin. The treatment regimen for the patient includes the use of pressurized (hyperbaric) oxygen. The pathogenic species undergoes fermentation for survival. Which of the following apply:
A. Staphylococcus aureus that produces proteases and lipases
B. E. coli that causes urinary tract infections and undergoes cellular respiration
C. Streptococcus pneumoniae that causes community acquired pneumonia
D. Clostridium perfringens that causes gas gangrene by synthesis of acids and gases
E. Candida albicans that causes urogenital tract infections due to dysbiosis