Bacteria which require living medium for their growth is

Answer: Option B

Bacteria that require living medium for their growth are Chlamydia and Rickettsia.
A growth medium or culture medium is a solid, liquid, or semi-solid designed to support the growth of a population of microorganisms or cells via the process of cell proliferation.
among bacteria species and growing conditions; these generally provide essential elements such as magnesium, nitrogen, phosphorus, and sulphur to allow the bacteria to synthesize protein and nucleic acids.