For VPN routing to succeed:

A.
A single rule must be created in the Security Policy Rule base and must cover traffic in outbound direction

B.
Two rules must be created in the Security Policy Rulebase, one must cover traffic in inbound direction and the other in outbound direction

C.
A single rule must be created in the Security Policy Rule base and must cover traffic in both directions

D.
A single rule must be created in the Security Policy Rule base and must cover traffic in inbound direction

E.
Two rules must be created in the Security Policy Rule base and must cover traffic in both directions