A supervisor with Avaya Aura Contact Center wants to setup a requirement for the Calls Waiting column on a Skillet Displ

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A supervisor with Avaya Aura Contact Center wants to setup a requirement for the Calls Waiting column on a Skillet Display to update in yellow when three or four calls are in queue, and red when five or more calls are in queue for the Customer Service Skillet.
Which three areas of Contact Center Administration must be configured to accomplish this goal? (Choose three.)

A. Create a Skillet Threshold Class, assign 3 to Level 1, and 5 to Level 2 for Calls Waiting.
B. Open a Standard Skillset Display, assign yellow highlighting to level 1 of the Calls Waiting column, and red to level 2 of the Calls Waiting column.
C. Assign Skillet Threshold Class to Customer Service Skillset.
D. Create a custom formula for Calls Waiting.
E. Create a custom Skillset Display, assign yellow highlighting to level 1 of the Calls Waiting column, and red to level 2 of the Calls Waiting column.