The auditor of Wentham is preparing a management report for his client. The client has indicated that copies of the report may be provided to third parties. The following have been suggested as ways in which the auditor could try to protect his position in relation to third parties who may seek to rely on this report:

1. State clearly in his report that it has been prepared for the private use of his client.

2. Require in the report that it is not circulated to any third parties without his prior consent in writing.

3. Include in the report an effective disclaimer of responsibility in relation to third parties.

4. Ask the client to sign a legally binding document stating that the auditor's management report cannot be relied upon by any third party that the client gives it to.

Which of the above are appropriate?