Which of the following statements regarding audit evidence is generally correct?

Multiple Choice

Appropriateness of audit evidence refers to the amount of corroborative evidence to be obtained.

To be appropriate, audit evidence must be sufficient.

The auditor's direct personal knowledge, obtained through observation and inspection, is more persuasive than information obtained indirectly from independent outside sources.

Accounting data alone may be considered sufficient appropriate audit evidence to issue an unqualified opinion on financial statements.