The CPA firm auditing XY Recording Service found that retained earning were understated and liabilities were overstated. Which of the following errors could have been the cause?
A.
Making the adjustment entry for depreciation expenses twice;
B.
Failure to record interest accrued on a note payable;
C.
Failure to make the adjusting entry to record revenue which had been earned but ot yet billed to clients;
D.
Failure to record the earned portion of fees received in advance.