You plan to set up an external list to work with the existing line-of-business application in the cloud.
You need to upload a configuration file to SharePoint Online to enable communication with the external data.
Which configuration file should you upload?
A. A Microsoft Business Connectivity Services (BCS) resource file
B. A Microsoft Business Data Connectivity (BDC) service model file that specifies a LobSystemInstance
C. A SharePoint trust configuration file that specifies permissions
D. A comma-separated OData definition file that specifies instance permissions
