A class B IPv$4$ host configured with a private IP address will use what mechanisms to facilitate access to the internet? $($Select all that apply.$)$

Cartoon ipv$4$

a$.$

Code division multiple access $($CDMA$)$

b$.$

Network address translation $($NAT$)$

c$.$

Proxy device

d$.$

Switched port analyser $($SPAN$)$ port