For each of the following cash flows amounts ($ millions), identify whether the company is in the introduction, growth, maturity, or decline stage of its life cycle. 
 Company Operating Cash Flow Investing Cash Flow Financing Cash Flow 
 a $72 $2,007 $(813) 
 b 7 (528) 878 
 c (2,578) (4,198) 7,461 
 d (407) 5,583 (2,404) 
 e 2,283 (3,449) 1,909 
 f 6,336 3,222 (2,006) 
 g (403) (1,726) (3,516) 
 h 3,704 (2,438) 1,332