A user is getting an error message when trying to go to a website. A technician asks the user a few questions to find out more about the issue. The technician opens a browser locally and browses to the same site as the user. Which of the following troubleshooting steps is the technician using by browsing to the same site?

A. Establish a plan of action.
B. Gather information

C. Duplicate the problem.

D. Find the root cause.