For companies required to produce interim financial statements (IFI):

A. one audit firm should audit the IFI and a different firm should audit the financial statements for the year as a whole.
B. one accountancy firm should review the IFI and a different firm should audit the financial statements for the year as a whole.
C. the same firm should audit the IFI and the financial statements for the year as a whole.
D. the same firm should review the IFI and the financial statements for the year as a whole.