A customer is looking for a network design with Cisco Hyperlocation using AP4800 for location tracking via a custom mobile app. Issues appeared in the past with refresh rates for location updates. What needs to be implemented to meet these requirements? 

Answer options:

A. Cisco CMX SDK in the location app
B. device Bluetooth via the app
C. Cisco FastLocate technology
D. redundant CMX and fetch location in round-robin fashion

C