Which step must be taken to make the datastore visible to ESXiA?

A new LUN has been presented to two ESXi hosts: ESXiA and ESXiB. The LUN can be seen

From both servers. A vSphere Client attached to ESXiB is used to create a VMFS datastore on the LUN.
The new datastore is visible on ESXiB but not ESXiA.

Which step must be taken to make the datastore visible to ESXiA?

A.
Perform a rescan operation on ESXiB.

B.
Reboot ESXiA.

C.
Perform a rescan operation on ESXiA

D.
Modify LUN masking settings on the the storage array.