Which component of culture media act as a stimulant for bacteria growth?

Option B

Culture media contains nutrients and physical growth parameters necessary for microbial growth. All microorganisms cannot grow in a single culture medium and in fact, many can’t grow in any known culture medium.
Organisms that cannot grow in the artificial culture medium are known as obligate parasites. Mycobacterium leprae, Rickettsia, Chlamydia, and Treponema pallidum are obligate parasites.