Which of the following is the most appropriate way to ensure that a newly formed...

 The internal audit charter is a formal document that defines the internal audit activity's purpose, authority, and responsibility.

 Establishing the internal audit activity's position within the organization in an audit charter ensures independence and objectivity by clearly stating the internal audit’s role and its reporting lines.

 The charter should be approved by the board and senior management to reinforce its authority and protect the internal audit activity from undue influence by management