Final answer:
If a second-degree burn is larger than 2 to 3 inches, it is important to seek immediate medical attention by calling 911. The correct choice is: 911
Step-by-step explanation:
If a second-degree burn is larger than 2 to 3 inches, the appropriate first-aid response is to seek medical attention immediately by calling 911. Second-degree burns that are larger in size require professional medical evaluation and treatment to prevent infection, promote healing, and minimize scarring.
While submerging the burned area in cold water and wrapping it in a clean, dry bandage can be initial first-aid steps for smaller burns, it is crucial to contact medical professionals for burns larger than the specified size to ensure proper care and management.