What two enhancements are in VMFS6 but not in VMFS5?

What two enhancements are in VMFS6 but not in VMFS5? (Choose two.)

A.
Support for 4k native disks

B.
Support for 512e disks

C.
GPT storage device partitioning

D.
Automatic space reclamation

Explanation:

http://vsphere-land.com/news/a-comparison-of-vmfs5-vmfs6-in-vsphere-6-5.html