Seattle Co has a well-establish internal audit department consisting of staff that have an length of service of six years.The scope of internal auditors work is determined by the Chief Financial O fficer (CFO).For some projects the internal audit teams review their own work. Which of the following statements are correct? ( i )The independence of the internal audit department could be enhanced if the another member of the finance team was involved in determining the scope of their work ( ii )To eliminate any self-review threats Seattle Co could increase expenditure on training so that internal auditors are better able to identify errors in their own work ( iii )Staff should be ratated (moved to another project area) on a regular basis to reduce the familiarity threat associated with the long length of service