Which of the following are core responsibilities to be included in the internal audit charter?

Which of the following are core responsibilities to be included in the internal audit charter?

1. Review reliability and integrity of financial and operating information and the means used to identify, measure, classify, and report such information.

2. Determine the adequacy and effectiveness of the organization’s systems of internal accounting and operating controls.

3. Participate in the planning and performance of audits of potential acquisitions with the organization's outside accountants and other members of the corporate staff.

4. Report to those members of management who should be informed of results of audit examinations, the audit opinions formed, and the recommendations made.