Which of the following is a biological exposure in the workplace?

• A. Physical exposures
• B. Chemical exposures
• C. Biological exposures
• D. Job stress

Answer: (C)

The main idea is distinguishing types of workplace hazards by what is causing the exposure. A biological exposure means contact with living organisms or their products that can cause illness, infection, or allergic reactions. This includes bacteria, viruses, fungi, parasites, and their toxins, as well as bioaerosols like mold spores. In workplaces such as healthcare, labs, or agriculture, such exposures are a key concern because they can lead to infections or inflammatory responses.

Physical exposures involve factors like noise, heat, radiation, or vibration. Chemical exposures are related to contact with chemical substances, solvents, acids, or fumes. Job stress is a psychosocial exposure, related to organizational and social factors rather than a biological agent. So exposure to biological agents is what makes this option the correct category.