Match Each Term with the Correct Definition

Match each term with the correct definition.
-lower endoscopy

A) Visual examination of the GI tract from the rectum to the cecum
B) Sample of feces examined for the presence of bacteria and other microorganisms
C) Visual examination of the GI tract from the esophagus to the duodenum
D) Ultra-high frequency sound waves are used to outline the shape of structures in the body