Refer to the exhibit.

The network administrator is adding a new spoke, but the tunnel is not passing traffic. What
could cause this issue?

A.
DMVPN is a point-to-point tunnel, so there can be only one spoke.

B.
There is no EIGRP configuration, and therefore the second tunnel is not working.

C.
The NHRP authentication is failing.

D.
The transform set must be in transport mode, which is a requirement for DMVPN.

E.
The NHRP network ID is incorrect.

Explanation:
http://www.cisco.com/c/en/us/td/docs/ios/12_4/ip_addr/configuration/guide/hadnhrp.html#w
p1055049