A man is admitted into the hospital and treated with broad-spectrum antibiotics for an infection caused by a gunshot wound to the abdomen. he subsequently contracts pseudomembranous colitis. which of these is the most likely reason this happened?

The man has been contracted with pseudo membranous colitis which is the result of taking broad-spectrum antibiotics for an infection caused by a gunshot wound to the abdomen; this is because normal micro biota is wiped by the antibiotics resulting the overgrowth of Clostridium difficile in colon.