Reviewing prior audit reports and supporting workpapers before an engagement starts enables an internal auditor to do which of the following?
1.To understand better the activity and processes that will be audited. 2.To identify the audit procedures that will be used during the engagement. 3.To ensure that matters of greatest vulnerability will be addressed. 4.To use the information obtained as evidence in the current engagement.
A. 4 only
B. 1 and 3 only
C. 1 and 4 only
D. 2, 3, and 4 only