Final answer:
The correct answer is C) Trained custodial staff. They have the necessary training and equipment to handle biohazardous materials safely.
Step-by-step explanation:
The correct answer is C) Trained custodial staff.
Trained custodial staff are allowed to clean up bodily fluids and blood. They have received specific training and have the necessary equipment and knowledge to handle biohazardous materials safely.
Other options listed in the question, such as janitors, registered nurses, and certified biohazard cleanup professionals, may have different roles and responsibilities, but they may also be involved in the cleanup process in certain situations. However, trained custodial staff are specifically trained for this task.