Which two items could be used to help establish a plan of action when resolving a computer problem?

To establish a plan of action when resolving a computer problem, the combination of the computer manual and the repair history log is highly effective. The computer manual provides essential information about the hardware and software components of the system, including troubleshooting steps for common issues. It outlines specifications, operational instructions, and safety precautions, making it an invaluable resource for identifying potential problems.

On the other hand, the repair history log records past repairs and maintenance performed on the computer. This log gives insight into recurring issues or specific components that may frequently fail, allowing technicians to prioritize their approach based on historical data. By analyzing both the manual for technical guidance and the repair history for contextual understanding, a technician can formulate a more targeted and efficient plan to address the current problem.

Other options, while they may contain relevant information, do not provide the same combination of hardware knowledge and historical context that is essential for effective troubleshooting.