问题：

[单选] A Cisco Application Control Engine Appliance （ACE） non-admin context does not support "sticky" configuration. What is the reason for this issue？（）

A .  ACE sticky license is not installed
B .  ACE stickiness is not supported in a non-admin context
C .  ACE stickiness resources are not defined in an admin context
D .  Stickiness is configured properly in the CCIE virtual context