Delta Airlines recently touted its inclusion on the prestigious Dow Jones Sustainability Index, a financial index aimed at recognizing environmental leaders within industries. Such an event is an example of how the changing preferences of consumers can alter the threat of among existing industry incumbents. A. economic, substitutes
B. environmental, rivalry
C. legal, rivalry
D. political, substitutes

B. environmental, rivalry

Explanation:

Delta Airlines recently touted its inclusion on the prestigious Dow Jones Sustainability Index, a financial index aimed at recognizing environmental leaders within industries. Such an event is an example of how the changing environmental preferences of consumers can alter the threat of rivalry among existing industry incumbents. Due to the call for sustainable environmental practices, businesses are becoming more environmental conscious and becoming more environmental friendly in their practices, this new consciousness and change in business practices could alter the competition and rivalry among existing industry incumbents as they will all want to shift their practices to support sustainability.

i do believe   by (keeping an organized record of all sources he or she referenced)good luck.

explanation:

american political culture includes a plenty of focus views and preferences. not all westerns experience the same opinions, of course, but the large preponderance promises to these general ideas, including equality, justice, freedom, individualism, integrity, and difference.

the united states is a democratic republic. residents elect representatives to governmental, nation, and local administration; those deputies create the regulations that command u.s. community. although emptiness in u.s. law needs it, in usage, the administrative system is ruled by executive factions.