A technician is troubleshooting a problem. The technician tests the theory and determines the theory is confirmed. Which of the following should be the technici...

A technician is troubleshooting a problem. The technician tests the theory and determines the theory is confirmed. Which of the following should be the technician's NEXT step?

A. Implement the solution. B. Document lessons learned. C. Establish a plan of action. D. Verify full system functionality.