An administrator is tasked with upgrading an existing VMware vSphere $6\mathrm{.}5$ environment to version $7\mathrm{.}0.$

There are existing VMFS$3$ and VMFS$5$ datastores in the environment.

Which two statements are true regarding this upgrade? $($Choose two.$)$ A$.$ VMFS$5$ is no longer supported with ESXi $7\mathrm{.}0.$

B$.$ VMFS$3$ is no longer supported with ESXi $7\mathrm{.}0.$

C$.$ An ESXi $7\mathrm{.}0$ host can automatically upgrade a VMFS$5$ datastore.

D$.$ An ESXi $7\mathrm{.}0$ host will automatically upgrade a VMFS$3$ datastore when discovered.

E$.$ A VMFS$3$ datastore cannot be upgraded; a new VMFS$6$ datastore is required.