Which aspect should be checked during a post-application inspection to verify efficacy?

Which aspect should be checked during a post-application inspection to verify efficacy?

• A. Pest activity, signs of kill, residue, and drift; confirm no re-entry hazards; adjust if needed.
• B. The color of the pesticide label.
• C. The cost of the product.
• D. The time until the next scheduled application.

Answer: (A)