Nishant Kumar Has Been Hired by American Manufacturing as a Staff

Nishant Kumar has been hired by American Manufacturing as a staff accountant in the internal audit department.He has been asked to thoroughly document the existing accounting information system in preparation for making recommendations for improvements.He decides to begin by meeting with the information technology staff in order to develop an understanding of the overall operation of the AIS,including data entry,storage,and output.The documentation tool that he should employ for this purpose is a

A) data flow diagram.
B) document flowchart.
C) system flowchart.
D) program flowchart.