Which statement is most appropriate?

A formal complaints procedure should be applied whereby management is advised of a clear process for submitting their concerns. The introductory memoranda to management may include the following paragraph:

a. We hope that you will not experience any problems with the audit work since all auditors work to the highest professional standards. However should you have any particular concerns please voice them to X who is the team leader for this project. In the event that you are still not satisfied please ask the team leader to contact the CAE.

b. We hope that you will not experience any problems with the audit work since all auditors work to the highest professional standards. However should you have any particular concerns please voice them to X who is the team leader for this project. In the event that you are still not satisfied please contact the CAE.

c. We pray that you will not experience any problems with the audit work since all auditors work to the highest professional standards. However should you have any particular concerns please voice them to X who is the team leader for this project. In the event that you are still not satisfied please contact the CAE.

d. We hope that you will not experience any problems with the audit work since all auditors work really hard. However should you have any particular concerns please voice them to X who is the team leader for this project. In the event that you are still not satisfied please contact the CAE.