In Order for Two Levels of a Data Flow Diagram

Multiple Choice

In order for two levels of a data flow diagram to balance

A) The system processes must be decomposed into the most detailed levels.
B) Both levels must be consistent in showing inputs and outflows.
C) Both levels must be primitive data flow diagrams.
D) Both levels must have the same number of processes.
E) Both levels must have the same number of data flows.