Which steps should the vSphere administrator take?

A vSphere administrator needs to upgrade a single extent VMFS3 datastore to VMFS5 and
expand it to 4TB in size. The storage administrator has already expanded the underlying LUN to
4TB.
Which steps should the vSphere administrator take?

A.
Expand the VMFS3 datastore to 4TB and then upgrade to VMFS5

B.
Upgrade the datastore to VMFS5, manually change the partition scheme to GPT, and then
expand the datastore to 4TB

C.
Upgrade the datastore to VMFS5 and then expand it to 4TB

D.
Change the block size of the VMFS3 datastore to 1MB, upgrade the datastore to VMFS5, and
expand it to 4TB