Which of the following could indicate pest activity?

• A. Clean counters
• B. Adequate lighting
• C. Eggs
• D. Training records

Answer: (C)

Pest activity is indicated by signs that pests are present or reproducing in the area. Finding eggs is a clear and direct sign that pests are or were recently active, since eggs show that a population is reproducing and maintaining itself in the premises. In contrast, clean counters reflect good sanitation, adequate lighting helps with visibility and deterrence but doesn’t prove pests are present, and training records relate to procedures rather than current pest activity. So, eggs are the best indicator of pest activity.