Which of the Following Is Not an Advanced Rule Governing

Multiple Choice

Which of the following is not an advanced rule governing data flow diagramming?

A) To avoid having data flow lines cross each other,data stores may be repeated on a DFD.
B) At the lowest level of DFDs,new data flows may be added to represent data that are transmitted under exceptional conditions.
C) Composite data flows on one level cannot be split into component data flows at the next level.
D) The inputs to a process must be sufficient to produce the outputs from the process.