Which of the following is the primary engagement responsibility of an entry-level internal auditor?

For entry-level internal auditors, the primary engagement responsibility typically involves documentation. This includes accurately and thoroughly documenting audit evidence and findings, which is essential for supporting the audit's conclusions and for review by more senior auditors. This task is fundamental for ensuring that audit work is recorded and traceable, aligning with the IIA's standards on performance (specifically, documenting information to support conclusions and engagement results).

The Institute of Internal Auditors (IIA) - International Standards for the Professional Practice of Internal Auditing.