Question: In a DFD , the Gane and Sarson symbol that looks like a flat rectangle that is open on the right side and closed on

In a DFD, the Gane and Sarson symbol that looks like a flat rectangle that is open on the
right side and closed on the left side represents which of the following?
Process
Data store
External entity
Data flow
In a DFD , the Gane and Sarson symbol that looks

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