In a data flow diagram (DFD),the Gane and Sarson symbol for a data flow is a _____.

In a data flow diagram (DFD),the Gane and Sarson symbol for a data flow is a _____.
A) segment of a differentiable curve
B) line with a single or double arrowhead
C) flat rectangle that is open on the right side and closed on the left side
D) triangle,which may be shaded to make it look three-dimensional


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