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In evaluating internal control, the first step is to prepare an internal control questionnaire or a flow chart of the system. The subsequent steps should be followed:
1. Determine the extent of audit work necessary to form an opinion
2. Gather enough evidence to determine as to whether the internal control system is functioning as described
3. Write a letter to the management describing the weaknesses in the internal control system
4. Form a final judgement on the effectiveness of the internal control system
The correct sequence of these steps would be.