Which type of specimen is examined for the presence of parasites such as roundworms or tapeworms? 

A. Throat culture specimen
B. Stool specimen
C. Wound specimen
D. Sputum specimen
E. Blood specimen

B. Stool specimen
A trained medical professional inspects a patient's stool for the presence of the parasite or its eggs to diagnose an intestinal infestation with a parasitic worm such as roundworms or tapeworms.