Accounting · Audit and Assurance

Which of the following statements correctly explains the possible threats to Ira & Co's independence and recommends an appropriate safeguard in relation to their audit of Umber Co? (1) An intimidation threat exists due to the overdue fee and Umber Co should be advised that all fees must be paid prior to the auditor's report being signed (2) A self-review threat exists due to the nature of the non-audit work which has been performed and an engagement quality control review should be carried out (3) A self-interest threat exists due to the relationship between Charlie and Percy and Charlie should be removed as audit partner