I need a, b & c for each question

identify the Auditor's opinion for each of the following independent cases. a-Explain and Justify your answer. b- bring all the alternative scenarios when answer. C-mention the appropriate auditor responses for each scenario. 1- Management refuses to permit the auditor to obtain confirmations about balances of certain vendors due judicial dispute between the client and vendors. 2- The auditor discovers serious deficiency of the client's internal control. 3- The auditor discovers client's tax evasion. 4- The auditor discovers a fraudulent act committed by a senior employee of the client. 5- The client asks the auditor to change the engagement from audit to review