Note: Each question may have more than ONE choice as correct answers.

2) Regarding Data Flow Diagram (DFD), which of the following statement is/are TRUE? A. Data flows must be an input or output of a Process Box. Physical flows are sometimes represented by a dotted line.' B. Data Flow diagram (DFD) is a type of diagram that represents the sequences of a process or workflow. C. External entities (people, place or organizations) are sources or destinations of data that are lying outside the context of the system. D. Data stores can hold permanent, temporary, historical or extract data. Files receive inputs and outputs only from Processes, NOT from Externals or other Files. E. None of the above