A. The flow shown in the diagram is correct, the wait stages are all adding a high level of robustness to the action
B. The wait stages after read and write stages should be removed they are not required and are slowing the flow down
C. The wait stages after read stages should be removed, the wait stages after write stages should be left because the application will have been changed
D. Only the first wait stage in this flow is required, all the other wait stages should be removed.
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