The correct answer is B. Register disbursement schemes usually involve false refunds or false voids that cause cash to be removed from the register while the records appear to justify the disbursement. An unusually high number of refunds on the register log is a red flag because it might indicate that employees are creating fictitious refund transactions to conceal cash theft. Option A is not suspicious by itself because no gaps in transaction numbers suggests record continuity. Option C is less suspicious because supervisory approval exists, although approvals should still be reviewed. Option D is generally a positive control because supporting documents should exist for voided transactions. The ACFE materials identify refund and void activity as key areas for detecting register disbursement schemes.

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