Phenotypic Testing Is Often Beneficial in Identifying Infectious Agents from Patient

Phenotypic testing is often beneficial in identifying infectious agents from patient samples; however, some disadvantages include ______.

A) lengthy culturing times and the inability to grow some bacteria in vitro
B) difficulty in identifying motile organisms
C) non-specificity of some biochemical tests since all pathogens utilize the same substrate as a fuel source
D) organisms must be grown on the same culture media so it is difficult to distinguish them from each other