The correct option is
C the blood is not removed from the body and a natural filter is used
Dialysis is of two types: haemodialysis and peritoneal dialysis. Peritoneal dialysis uses a natural filter inside the body i.e, peritoneal membrane to remove wastes and extra fluid from the body. The dialysis fluid fills the belly and pulls out wastes and extra fluid from the body. Blood is not removed from the body as in the case of haemodialysis.So the correct option is B.