Refer to the exhibit.

 Grouping Events in FortiSIEM: Grouping events by specific attributes allows administrators to aggregate and analyze data more efficiently.

 Grouping Criteria: In this case, the events are grouped by "Event Type" and "User" attributes.

 Unique Combinations: To determine the number of results displayed, identify the unique combinations of the "Event Type" and "User" attributes in the provided data.

Failed Logon by Ryan(appears multiple times but is one unique combination)

Failed Logon by John

Failed Logon by Paul

Failed Logon by Wendy

 Unique Groupings: There are four unique groupings based on the given data: "Failed Logon" by "Ryan", "John", "Paul", and "Wendy".

 References: FortiSIEM 6.3 User Guide, Event Management and Reporting sections, which explain how events are grouped and reported based on selected attributes.