Analyzing the cash flow statement) The cash flow statements for retailing giant BigBox, Inc. spanning the period 2013dash2016 are found here:

Answer the following questions using the information found in these statements:

a. Did BigBox generate positive cash flow from its operations?

b. How much did BigBox invest in new capital expenditures over the period?

c. Describe BigBox's sources of financing in the financial markets over the period.

d. Based solely on the cash flow statements for 2013 through 2016, write a brief narrative that describes the major activities of BigBox's management team over the period.

(US$ millions)	12/31/2016	12/31/2015	12/31/2014	12/31/2013
Net Income	$13,090	$12,030	$11,100	$10,100
Depreciation Expense	6540	6350	5020	3990
Changes in Working Capital	1180	2330	2440	1030
Cash from Operating Activities	$20,810	$20,710	$18,560	$15,120
Capital Expenditures	$(16,000)	$(14,550)	$(14,040)	$(12,250)
Cash from Investing Activities	$(16,000)	$(14,550)	$(14,040)	$(12,250)
Interest and Financing Cash Flow Items	$(370)	$(270)	$(330)	$80
Total Cash Dividends Paid	(3,610)	(2,750)	(2,520)	(2,240)
Issuance (Retirement) of Stock	(7,950)	(1,530)	(3,620)	(4,540)
Issuance (Retirement) of Debt	1550	(90)	3960	4120
Cash From Financing Activities	$(10,380)	$(4,640)	$(2,510)	$(2,580)
Net Change in Cash	$(5,570)	$1,520	$2,010	$290