If a child accidentally swallows a household cleaning product, what is the immediate and most critical action to take?

✓ Correct Answer: Option C

Inducing vomiting can be harmful depending on the substance, and other remedies like milk or activated charcoal should only be administered under professional guidance. Calling Poison Control (1-800-222-1222 in the US) or emergency services immediately provides expert, specific advice for the ingested substance.