What impact do roaming-sensitive settings and Device Mobility settings have on call routing?

What impact do roaming-sensitive settings and Device Mobility settings have on call routing?
A . Device Mobility settings have no impact on call routing, but roaming-sensitive settings modify the AAR group, AAR CSS, and device CS
C . Device Mobility settings modify the device CSS and the roaming-sensitive settings modify the AAR group and AAR CS
E . Device Mobility settings modify the AAR group and the AAR CSS, the roaming-sensitive settings modify the device CS
G . Roaming-sensitive settings are settings that do not have an impact on call routing. Device Mobility settings, on the other hand, may have an impact on callrouting because they modify the device CSS, AAR group, and AAR CS

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Answer: D