The correct option is B Hindgut
The alimentary canal of the cockroach is divided into - foregut, midgut and hindgut.
The foregut comprises of mouth, pharynx, oesophagus, crop and gizzard.
The midgut is a tubular structure between the foregut and hindgut. It is also known as mesentron.
The hindgut is broader than midgut and comprises of ileum, colon and rectum.