Please answer all the questions. Thank you.

Review the 2015 annual report of AT&T and determine the following: What type of auditor's opinion ? What are the business segments? What is one of the operating environment factors they discuss in the MD&A? Liquidity ratio: Current ratio Activity ratio: Asset turnover Profitability ratio: Profit margin on sales and Rate of return on assets Coverage ratio: debt to total assets What are some of the significant footnotes? What is one of their significant accounting policies