This exposure occurs when hazardous chemicals are eaten or swallowed.

• A. Absorption
• B. Inhalation
• C. Ingestion
• D. Injection

Answer: (C)

Ingestion is the exposure route that occurs when a hazardous chemical is eaten or swallowed. It means the substance enters the body through the mouth and moves into the digestive system. This is different from inhalation (breathing in the chemical), absorption (the chemical passing through skin or mucous membranes), and injection (entry into the body via a puncture or needle). The phrase “eaten or swallowed” directly describes ingestion, which is why it fits the scenario best. In practice, if ingestion is suspected, follow standard safety precautions and medical guidance, such as seeking professional help promptly and providing the healthcare team with product information or labels.