Identify the incorrectly matched pair

(1)	Mycobacterium leprae	Obligate parasite
(2)	Clostridium botulinum	Obligate parasite
(3)	Staphylococcus	Facultative parasite
(4)	Mycoplasma	Facultative parasite

The correct option is B 2
Mycobacterium leprae is an obligate intracellular parasite. It causes laprosy. Clostridium botulinum is an anaerobic gram positive bacteria. It produces botulinum. It causes botulism. Staphylococcus is a type of bacteria that is normally found on the skin and hair. However, it may act as obligate parasite when get entry inside the skin barrier. Mycoplasma can be parasitic or saprotrophic. Hence, it is a facultative parasite. It causes diseases like pneumonia.

Thus, the correct answer is '2.'