What should you do?

You support a customer with a Microsoft Lync Server 2013 environment.
Your customer receives the following error Event ID 21022 LS AddressBook Server:
"A Full dats file is corrupt The path \fileservershare1-Webservices-1 ABFites000000-0000-0000- 0000-000000000 000000000-0000-0000-0000- 000000000000F-0fd0.lsabs -file corrupted: Invailid Attibute id 0 in contact. Index: 7 GUID Guid: <1329aec4-da97-46e4-b995-1039c096f9el} Offset: 255.”
Users who have their Client Policy set to WebSearchandFileDownload report that they are not receiving updated information in the Lync address books.
You need to ensure that users are able to download the address book.
What should you do?
A. Run the Update-CsUserDatabase cmdlet.
B. Browse to your Lync file share, located at \fileservershare1-Webservices-1 ABFiles000000- 0000-0000-0000-000000000000000000-0000- 0000-0000-000000000000. Delete all of the files, and then run the Update-CsAddressBook cmdlet.
C. Run the Set-CsAddressBookConfiguration -Identity Global -EnableFileGeneration Strue cmdlet.
D. Delete the rtcab and rtcab1 databases, and then run the Install-CsDatabase -ConfiguredDatabases cmdlet.