Refer to the exhibit.
Which option is the reason for the failure of the DMVPN session between R1 and R2?
A.
incorrect tunnel source interface on R1
B.
IPsec phase-1 policy mismatch
C.
tunnel mode mismatch
D.
IPsec phase-2 policy mismatch
E.
IPsec phase-1 configuration missing peer address on R2