What would you do to the object which is expected to be no -longer in use
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Declare as null
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Declare as Null and Call the dispose method
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Call GC.SupressFinalize method for the object
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None of the above
For objects that are no longer needed and implement IDisposable, you should set the reference to null AND call the Dispose() method to release unmanaged resources promptly. Setting to null helps the garbage collector by removing the reference, while Dispose releases resources like file handles or database connections immediately rather than waiting for finalization.
When an object holding unmanaged resources (files, connections, handles) is no longer needed, you should call its Dispose() method to release those resources deterministically, and then set the reference to null so the garbage collector can reclaim the managed memory. Just nulling the reference doesn't release unmanaged resources promptly, and calling GC.SuppressFinalize alone skips finalization but doesn't do the actual cleanup.