If a Report is run which returns 20,000 records then:
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A. B. C. D.B.
If a report is run that returns 20,000 records, Salesforce will not display all 20,000 records in the user interface. Instead, Salesforce will display the first 2,000 records.
This behavior is due to Salesforce's default setting called "Report Results Run Time." This setting limits the number of records that are displayed in the UI when a report is run. The default setting is 2,000 records, but it can be adjusted by a system administrator.
If a user wants to see all 20,000 records, they can download the report in a CSV format, which will include all records returned by the report.
Option C is not applicable because Salesforce will not automatically split the report results into multiple reports.
Option D is not correct because the report will still run successfully and return the first 2,000 records.
Therefore, the correct answer is B: First 2K records are displayed in the UI.