Your company is setting up a branch office that will have seven client computers running Windows $10$ that are joined to your domain. The branch office does not have a secure server room but you need a server to share files and printers. You also want to limit the amount of authentication traffic that travels across the WAN. What should you install in the branch office?

$$ a$.$ a standard DC

b$.$ a Linux server with SAMBA

c$.$ an RODC

d$.$ a member server