I need more explanation on all options about why they are correct or wrong.

1. Which of the following statements relating to general controls and application controls ismost correct?

A.General controls directly inform assessments of control risk for assertions in specific accounts.

B.The reliance that auditors can place on application controls often depends on the reliability of general controls.

2. Which of the following statements about risk assessment in an information technology environment ismost correct?

C.Where a client makes significant use of information technology, the auditor will look to adopt a predominately substantive approach to reduce audit risk to a sufficiently low level.

D.When assessing the IT controls, the auditor is concerned with whether the control can be relied upon to prevent or detect material misstatements, rather than whether it is manual or automated.

3. Which of the following uses of computer-assisted audit techniques would assist the auditor in a test of thecompleteness of revenue?

E.Selecting 50 items from the accounts receivables population by reference to a random number function in the audit software. The 50 items are then vouched to sales invoices.

F.A sequence check looking for missing sales invoice numbers.