Which of the following "must" criteria are really "operational" in nature?

A) The childcare facility selected must be independently owned. 
B) The childcare facility selected must have five years of experience in corporate daycare. 
C) The childcare facility selected must employ experienced teachers.
D) ​Selection of the child care facility must be completed in one month.

Operational criteria refer to the processes or methods related to the execution or operation of a plan or project. Choice D, which specifies a timeframe for the selection of the childcare facility, is operational because it relates to the timeline of the selection process. Choices A, B, and C are more related to the characteristics or qualifications of the childcare facility and its staff, rather than the operational aspects of selecting a facility.