Final answer:
Single-use gloves should never replace handwashing; gloves provide a protective barrier, but handwashing is essential for hygiene and preventing contamination.
Step-by-step explanation:
The correct answer to the question is B) Never. Single-use gloves should never be used in place of handwashing. This is because handwashing is an essential practice for maintaining hygiene and preventing contamination, especially in a lab setting. Gloves may provide a barrier of protection, but they are not a substitute for cleaning your hands, which can carry pathogens and contribute to the spread of infection. It's particularly important to wash hands with soap after handling and disposing of hazardous materials during the lab, as stated in safety protocols. Single-use gloves are used during specific tasks to provide a protective barrier, but they do not eliminate the need for hand hygiene.