The following information ($ in millions) comes from a recent annual report of Amazon.com, Inc.:

Net sales $ 10,877

Total assets 4,495

End of year balance in cash 1,152

Total stockholders' equity 394

Gross profit (Sales Cost of Sales) 2,584

Net increase in cash for the year 27 Operating expenses 2,050

Net operating cash flow 734

Other income (expense), net (28 )

Multiple Choice

$4,495

$2,280

$4,101

$4,634