Which of the following statements is true regarding external quality assessments?

They can be performed by self-assessment with independent external validation, but they must be performed every three years.

When a new chief audit executive (CAE) is appointed, an external quality assessment should be undertaken during the CAE’s first year of office.

An external quality assessment must be conducted at least once every five years by a qualified, independent assessor or assessment team.

An external assessment by a qualified professional from outside of the organization can be performed in place of an internal assessment.