Which of the following technologies simplifies and integrates all forms of communication $($e$.$g$.,$ voice, email, instant messaging, and videoconferencing$)$ on a common hardware and software platform?

Question $35$ options:

$1)$

FTTH $($Fiber to the Home$)$

$2)$

UC $($Unified Communication$)$

$3)$

VoIP

$4)$

DSL $($Digital Subscriber Line$)$