At Westonci.ca, we make it easy for you to get the answers you need from a community of knowledgeable individuals. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

Queuing system operating statistics:
A) change from start to finish during the day
B) are constant over time
C) include queue discipline, arrival rate, and service rate
D) all of the above