Which two statements are correct regarding vSphere cert…

Which two statements are correct regarding vSphere certificates? (Choose two.)

A.
ESXi host upgrades do not preserve the SSL certificate and reissue one from the VMware Certificate Authority (VMCA).

B.
ESXi host upgrades preserve the existing SSL certificate.

C.
ESXi hosts have assigned SSL certificates from the VMware Certificate Authority (VMCA) during install.

D.
ESXi hosts have self-signed SSL certificates by default.