An RN Is Working at a Public Health Clinic That

Multiple Choice

An RN is working at a public health clinic that sees many patients with infectious disease. Ms. Hungh, a Burmese immigrant, presents to the clinic with an interpreter, complaining of fatigue, weight loss, persistent cough, and rust-colored sputum. The interpreter explains that Ms. Hungh has had this cough for many months in her home country and, now that she is in America, is seeking treatment for her condition.
-Ms.Hungh's acid-fast stain results resulted as inconclusive for the presence of acid-fast bacilli.Culturing of the sputum is performed in order to isolate microbial growth for further analysis.Lowenstein-Jensen medium is utilized to select for the growth of Mycobacterium species if present in the sample,while suppressing unwanted background organisms.What is the proper term for this type of medium?  

A) Differential medium
B) Selective medium
C) Differential medium and selective medium
D) None of the choices are correct.