On an Avaya IP Office Customer System, Only Three Out

Multiple Choice

On an Avaya IP Office customer system, only three out of four analog trunks are connected to a provider. Which solution for the fourth trunk port would not impact the operational trunks?

A) The Line Appearance ID should be set to 700
B) No settings are needed
C) The Line Group ID needs to be set to Default
D) The Trunk has to be set to Out of Service using SSA