Final answer:
The correct option is d. Microbial culture is the process of growing tissue or fluid samples suspected of being infected to identify the specific pathogen causing the infection.
Step-by-step explanation:
The process of culturing tissue or fluid samples suspected of being infected for pathogen identification is called microbial culture. In this process, samples are grown on a culture medium or examined under a microscope to identify the specific pathogen causing the infection.
Bacteria can be identified based on colony characteristics, while viruses can be identified by using cultured cells as a medium. Biochemical tests and serological tests can also be used to identify specific pathogens. Microbial culture is the process of growing tissue or fluid samples suspected of being infected to identify the specific pathogen causing the infection.