500
An audit team would most likely verify the interest earned on bond investments by
a) vouching the receipt and deposit of interest checks
b) confirming the bond interest rate with the issuer of the bonds
c) recomputing the interest earned on the basis of face amount, interest rate, and period held
d) Testing internal controls relevant to cash receipts
c) The audit program for long-term investments includes making an independent computation of revenue (such as dividends and interest). For example, bond certificates contain information about interest rates, payment dates, issue date, and face amount that the auditor can use to recalculate bond interest earned, including amounts accrued but not collected, during the period the auditee has held the investment.