You Are a Nurse on a Post-Surgical Ward

You are a nurse on a post-surgical ward. One of your patients is an elderly woman who has just had her gallbaldder removed. When you go into her room to check on her, you find that she has significant diarrhea, as well as fever and abdominal pain. You suspect that she has Clostridium difficile infection (CDI) , and send a sample of her feces down to the hospital lab for analysis. The test result indicates that your patient does indeed have CDI. You make your patient comfortable and answer her questions about her illness.
-You tell your patient that in some cases, CDI becomes chronic. One approach for treating this condition is a fecal microbiota transplant. How might this help a person with recurrent CDI?

A) Genetically modified microbiota is added to the disrupted system of the CDI patient. This creates a balanced population that can compete with the C. difficile.
B) Healthy, normal microbiota is added to the disrupted system of the CDI patient, creating a balanced population that outcompetes the C. difficile.
C) Healthy, normal microbiota is added to the disrupted system of the CDI patient. These new bacteria secrete exotoxins that kill the pathogenic C. difficile.
D) Healthy, normal microbiota is added to the disrupted system of the CDI patient. This stimulates the immune system of the person, eventually causing elimination of the C. difficile.
E) Normal microbiota from a person treated with prophylactic antibiotics is added to the disrupted system of the CDI patient. The antibiotic diffuses from the added microbiota, killing the C. difficile.