When using Customizable Forecasts, which forecast category is not included in the forecast? * (1 Point)

An administrator is receiving cases that users are getting logged out of Salesforce without notice.
What should the administrator do to address this issue?

Universal Containers has a requirement to report on opportunities where the probability has dropped beneath 50%. The administrator has created a custom checkbox as a way to identify these records.
What else should the administrator do to meet this requirement? * (1 Point)

Universal Containers uses a custom object to track customer complaints. The company wants to have a field on the custom object where they can include a reference to another complaint.
What types of relationship can be used to accomplish this?

Ursa Major Solar allows its scientists to log new stars as they find them, but on occasion, they log the same star by mistake. The administrator wants scientists to be notified when a record is deleted and by whom, and to maintain their own discovery information.
What automation solution should be used to send the notification?