What is the basic difference in the manner in which a client location is determined on a map when using Cisco WCS Location v7.0 versus Cisco WCS Base?

A.
Cisco WCS Base uses SNR from two or more APs, and Cisco WCS Location uses the SNR from the closest AP.

B.
Cisco WCS Base uses highest SNR signal from a single AP, and Cisco WCS Location uses highest SNR signal from two or more APs.

C.
Cisco WCS Base uses RSSI from a single AP, and Cisco WCS Location compares the RSSI signal strength from two or more APs.

D.
Cisco WCS Base uses RSSI from two or more APs, and Cisco WCS Location uses RSSI from the closest AP.

Explanation: