The last $64$ bits of an IPv$6$ address are the interface identifier. An IPv$6$ interface ID can be assigned to a host in which of the following ways $($More than one option applies$)?$a$.$Using the IP $($Internet Protocol$)$ address.b$.$Using a DHCP $($Dynamic Host Configuration Protocol$)$ server.c$.$By means of an ARP $($Address Resolution Protocol$)$ broadcast.d$.$Using the $48-$bit MAC $($Media Access Control$)$ address.e$.$By means of a randomly generated permanent interface identifier.