An administrator configures a Local Content Library on vCenter Server A, enables publishing, and creates Subscribed Content Libraries on vCenter Server B and vCenter Server C using the publishing URL. However, the contents of the subscribed libraries on vCenter B and C are not synchronizing with the source library on vCenter A. Which step should the administrator take to troubleshoot the issue?
A. Recreate the Subscribed Content Libraries on vCenter B and C with a new publishing URL from vCenter Server A to reset the synchronization configuration
B. Verify that network connectivity exists between vCenter Server A and the other two vCenters, and ensure that the required ports for Content Library synchronization are open
C. Enable bidirectional synchronization on the Content Library settings to ensure updates are propagated back and forth between vCenter Server A and the subscribed libraries
D. Manually export the library content from vCenter Server A and import it into the subscribed libraries on vCenter B and C to initialize synchronization