In which regions does DKE mainly operate?

Delta Kappa Epsilon (DKE) primarily operates across various states throughout the United States and Canada. This answer reflects the organization's strong presence in North America, where it has established chapters at numerous colleges and universities. While DKE does have some connections or interests internationally, its main activities, membership, and chapter establishment are significantly concentrated in the U.S. and Canada, which is why this response is accurate.

The other options do not fully encapsulate the reach of DKE, as they either restrict the organization to a single country or suggest regions outside of its primary operations, such as Europe and Australia, which are not central to DKE’s current activities.