At the end of 2015, Apple had cash and short-term investments of $ 41.67 billion, accounts receivable of $ 35.82 billion, current assets of $ 89.49 billion, and current liabilities of $ 80.93 billion. a. What was Apple's current ratio? b. What was Apple's quick ratio? c. What was Apple's cash ratio? d. At the end of 2015, HPQ had a cash ratio of 0.27, a quick ratio of 0.81 and a current ratio of 1.24. What can you say about the asset liquidity of Apple relative to HPQ?