(1) informing a person requesting records that the request or portion of the request does not reasonably describe the records sought, including direction, to the extent possible, that would enable that person to request records reasonably described;

(2) granting or denying access to records in whole or in part;

(3) acknowledging the receipt of a request in writing, including an approximate date when the request will be granted or denied in whole or in part, which shall be reasonable under the circumstances of the request and shall not be more than 20 business days after the date of the acknowledgment, or if it is known that circumstances prevent disclosure within 20 business days from the date of such acknowledgment, providing a statement in writing indicating the reason for inability to grant the request within that time and a date certain, within a reasonable period under the circumstances of the request, when the request will be granted in whole or in part; or

(4) if the receipt of request was acknowledged in writing and included an approximate date when the request would be granted in whole or in part within 20 business days of such acknowledgment, but circumstances prevent disclosure within that time, providing a statement in writing within 20 business days of such acknowledgment specifying the reason for the inability to do so and a date certain, within a reasonable period under the circumstances of the request, when the request will be granted in whole or in part.