What are two advantages of using DMVPN instead of IPsec tunnels to accomplish this task?

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An engineer must design a VPN solution for a company that has multiple branches connecting to a main office.

What are two advantages of using DMVPN instead of IPsec tunnels to accomplish this task? (Choose two.)
A . support for AES 256-bit encryption
B . greater scalability
C . support for anycast gateway
D . lower traffic overhead
E . dynamic spoke-to-spoke tunnels

Answer: B,E