What is one distinguishing feature of Aruba NetInsight and User-centric Service Assurance?

What is one distinguishing feature of Aruba NetInsight and User-centric Service Assurance?
A . They help improve customer engagement by providing a customizable Wi-Fi portal.
B . They help to analyze customer usage patterns over a certain period of time so that companies can improve marketing campaign success.
C . They help IT to simplify policy enforcement by enhancing visibility, authentication and authorization.
D . They help deliver a better user experience with in-depth network analytics to assess user, device, and application connectivity.

Answer: D