Please answer the below and submit in a word document. Be careful, make sure to avoid plagiarism and to use quotation marks and proper citation as required. Length should be 500 words and double-spaced. Use APA format for citations and the required References page. Remember that the significant portion of your analysis should be in your own words.  

E-Book: Principles of Auditing and Other Assurance Services. 21st Edition. O.Ray Whittington and Kurt Pany. 2019 McGraw-Hill. This textbook is preferred, but optional.

Distinguish between audit, attest, and assurance services. 

What is GAAS? 

Which agency is responsible to set these standards in the U.S.? 

Describe the different types of opinions an auditor gives in an audit report and under what situations? 

What is the nature of the additional paragraphs in the audit report?