The correct answer is option A
Aerobic bacteria cause an infection in the kidney, and anaerobic bacteria cause an infection in the appendix.
The common regions of human body where anaerobic infections occur include -
a) Oral cavities
b) Abdominal cavities
c) Pelvic cavities
d) Other regions like Β head, neck, and skin and bones
The site of anaerobic infection is commonly the site of normal colonization which usually occurs all the locations as mentioned above.