Which of the following statements is correct concerning an auditor's use of the work of a specialist?
A.
The auditor need not obtain an understanding of the methods and assumptions used by the specialist.
B.
The auditor may not use the work of a specialist in matters material to the fair presentation of the financial statements
C.
The reasonableness of the specialist's assumptions and their applications are strictly the auditor’s responsibility
D.
The work of a management specialist who has a contractual relationship with the client may be acceptable under certain circumstances