The Leukocytes Called Natural Killer Lymphocytes

Multiple Choice

The leukocytes called natural killer lymphocytes

A) respond to the coating of a pathogen by complement.
B) release prostaglandins and leukotrienes in response to microbes.
C) increase in allergies and helminth infection.
D) are nonspecific leukocytes that secrete toxins onto the surface of virally infected cells.
E) are specialists in killing bacteria.