正确答案:(a)SamplingmethodsMethodsofsamplinginaccordancewithISA530AuditSamplingandOtherMeansofTesting:Randomselection.Ensureseachiteminapopulationhasanequalchanceofselection,forexamplebyusingrandomnumbertables.Systematicselection.Inwhichanumberofsamplingunitsinthepopulationisdividedbythesamplesizetogiveasamplinginterval.Haphazardselection.Theauditorselectsthesamplewithoutfollowingastructuredtechnique–theauditorwouldavoidanyconsciousbiasorpredictability.Sequenceorblock.Involvesselectingablock(s)ofcontinguousitemsfromwithinapopulation.Tutorialnote:Othermethodsofsamplingareasfollows:MonetaryUnitSampling.Thisselectionmethodensuresthateachindividual$1inthepopulationhasanequalchanceofbeingselected.Judgementalsampling.Selectingitemsbasedontheskillandjudgementoftheauditor.(b)Assertions–classesoftransactionsOccurrence.Thetransactionsandeventsthathavebeenrecordedhaveactuallyoccurredandpertaintotheentity.Completeness.Alltransactionsandeventsthatshouldhavebeenrecordedhavebeenrecorded.Accuracy.Theamountsandotherdatarelatingtorecordedtransactionsandeventshavebeenrecordedappropriately.Cut-off.Transactionsandeventshavebeenrecordedinthecorrectaccountingperiod.Classification.Transactionsandeventshavebeenrecordedintheproperaccounts.(c)AuditreporttermModified.Anauditormodifiesanauditreportinanysituationwhereitisinappropriatetoprovideanunmodifiedreport.Forexample,theauditormayprovideadditionalinformationinanemphasisofmatter(whichdoesnotaffecttheauditor’sopinion)orqualifytheauditreportforlimitationofscopeordisagreement.