An administrator has figured out a possible cause to a problem. Which of the following is the NEXT step the administrator should take?

Implementing a solution before testing the theory is premature and could introduce new problems or waste time on an incorrect fix if the theory is wrong.

Verifying full system functionality is a step that occurs after a solution has been implemented and the problem is believed to be resolved, not after just identifying a possible cause.

Establishing a plan of action to identify the problem is a step taken earlier in the troubleshooting process, when the problem cause is still unknown, not after a possible cause has been identified.

In a structured troubleshooting methodology, once a theory of probable cause has been established, the next critical step is to test that theory. This involves performing actions or observations to confirm if the theory accurately explains the problem before attempting to implement a solution.