how can the report creator configure the report to meet these requirements?

a salesforce user has created a lightning report that lists all customer support cases. other users can change the date range but are NOT allowed to changed case statuses.

how can the report creator configure the report to meet these requirements?
A . Save the report in public folder and lock the status filter on the report.
B . Save the report in public folder and grant Read Only access to the folder.
C . Save the report in private folder and lock the status filter on the report.
D . Save the report in private folder and grant Read Only access to the folder.

Answer: D