A customer wants to configure their call center for emergencies.
What action would you advise the call center supervisor to use to configure an alternate call path in case of a disaster?

A. Set a value variable and change the value assigned using a feature access code
B. Set a trunk group and change the trunk number using a variable
C. Set a vector directory number with a collect-type variable

D. Set a feature access code that detects a power outage and reroutes calls automatically