Parasitic Worms, Even Meters-Long Tapeworms, Are Studied in Microbiology Because

Multiple Choice

Parasitic worms, even meters-long tapeworms, are studied in microbiology because

A) the Gram stain can be used to identify them.
B) they are parasites.
C) no one else wants to study them.
D) diagnosis usually involves microscopic examination of patient samples.
E) Leeuwenhoek first discovered them.