Please help me answer both question 6 and 7 and explain as well

Question Completion Status: QUESTIONG The auditor can respond to an increased risk of fraud by doing all of the following except OA Assigning more esperienced personnel to the audit OB Increasing professional skepticism @c. Increasing acceptable audit risk OD Taking steps to obtain more reliable evidence QUESTION 7 Under the Sarbanes-Oxley Act, which of the following services performed by registered accounting firms for dheir audit clients would not impair hea independence? OA Tax services BInternal audit services O C Systems design O D Appraisal services Cick Save and Subelt to save and submCliok Save All Avers to sve all 3 8