Which one of these is NOT a recorded "activity" in SFDC?

5 dynamic dashboards for Enterprise Edition
10 for Unlimited Edition
3 Developer Edition.
To create, edit, and delete dynamic dashboards: "Run Reports" AND "Manage Dynamic Dashboards" Which of the following events are allowed while writing a trigger on feeds item and feed Comment object?

The VP of Sales at Cloud Kicks is receiving an error message that prevents them form saving an Opportunity. The administrator attempted the same edit without receiving an error.
How can the administrator validate the error the user is receiving?

The Account Access, Contact Access and Opportunity Access options depend on your sharing model

What type of relationship must exist if you would like the child record to remain if the parent is deleted?