A customer is experiencing difficulty printing a document containing confidential information. A technician is able to resolve the problem quickly but needs to test the solution. Which of the following would be the BEST action for the technician to take?

A.
Ask the customer to print and inspect the document to ensure the problem is resolved.

B.
Print the document and inspect the document to ensure that the problem is resolved.

C.
Testing is not required because a technician always knows when a problem is resolved.

D.
Involve the support supervisor because of the confidential nature of the document.