Match each IKE component to its supported option.
1. IKE authentication
2. IKE encryption
3. IKE data authentication/integrity
4. IKE key negotiation
(a) 3DES or AES
(b) MD5 or SHA-1
(c) pre-shared key or digital certificates
(d) DH Group 1,2,or5

A.
a-1, b-2, c-3, d-4

B.
a-2, b-3, c-4, d-1

C.
a-2, b-1, c-3, d-4

D.
a-2, b-3, c-1, d-4