Which branch office solution best meets the customer needs?

A customer has multiple medium and large branch sites, each of which requires between 8 and 16 APs and supports between 200 and 600 wireless clients. Every branch site has an internet connection, which it uses to reach the central data center. The customer would prefer the WAN links to be optimized in the solution.

Each side handles between 1 and 2 Gbps of traffic, most of which goes to the central data center. The data center has 7210 controllers for terminating the VPN connections.

Which branch office solution best meets the customer needs?
A . CAPs and branch office controllers with an SD-WAN license
B . IAPs and no branch office controllers
C . CAPs and branch office controllers
D . RAPs and no branch office controllers

Answer: B