Comprehensive and Detailed Explanation:
TheCompTIA Troubleshooting Methodologystates thatafter testing the theory, the next step is toestablish a plan of actiontoresolve the issue.
Troubleshooting Steps:
* Identify the problem.
* Establish a theory of probable cause.
* Test the theory to determine the cause.
* Establish a plan of action and implement the solution.#(Correct step)
* Verify full system functionality.
* Document findings, actions, and outcomes.
Breakdown of Options:
* A. Verify full system functionality- Happensafterimplementing the solution.
* B. Document the findings and outcomes-Final step, happensafterresolving the issue.
* C. Establish a plan of action-#Correct answer.Comesimmediately afterconfirming the cause.
* D. Identify the problem-First step, already completed.