What the client HUB?

What the client HUB?
A . It is an SAP Mobile Platform 3.0 server component that keeps track of security cradentials for multiple applications and consolidates them in an SSO-style behavior before accessing the backend data.
B . It is an SAP Mobile Platform 3.0 server component that controls all the security interactions between the client and the backend data provider.
C . It is a native application that a user installs on a device that allows multiple business applications to share common credentials enabling an SSO-style behavior.
D . It is a native application that a user installs on a device that acts as a hub tor all application security in interactions with the SAP Mooile Platlcm 3.0 server.

Answer: C