Whether migrating to a private or public cloud environment, which response gives the two available options?

a$.$ Redeployment of the OS and applications, and VM infrastructure orchestration.

b$.$ Filtration of IPSec protocols, and redeployment of the OS and applications.

c$.$ Migration of data across WAN$/$LAN links, and redeployment of the OS and applications.

d$.$ Migration of data across WAN$/$LAN links and filtration of IPSec protocols.