A lawyer's response to an auditor's inquiry concerning litigation, claims, and assessments may be limited to matters that are considered individually or collectively material to the client's financial statements. Which parties should reach an understanding on the limits of materiality for this purpose?
a. The auditor and the client's managements.
b. The client's audit committee and the lawyer.
c. The client's management and the lawyer.
d. The lawyer and the auditor.