You should assume that the following independent situations are material. Assume that U.S. GAAP is the applicable financial reporting framework. Which of the following situations would result in an unmodified audit opinion? More than one answer is possible:

The client changed its accounting policy for recognition of bad debt expense from the allowance method to the direct write-off method during the period covered by the audit.

Management did not provide the auditor his/her personal financial statements.

The client did not provide the audited financial statements of his/her subsidiary to the auditor.

The client's legal counsel refused to respond to the auditor's letter of inquiry.

The client's current-year income statement includes amortization expense of goodwill.

The CEO of the client refuses the auditor access to minutes of board directors meetings.