You are in configuration mode at the top of the hierarchy. You need to abort the changes that you have made and start again with a fresh copy of the active conf...

You are in configuration mode at the top of the hierarchy. You need to abort the changes that you have made and start again with a fresh copy of the active configuration. Which command should you use to accomplish this task?

A. rollback 0 B. load active C. reset config D. clear candidate config