PRobert was a teacher in the Phoenix Union High School district for 10 years. At the age of 32, he decided to join the U. S. Regular Army, and was sent overseas. He could not teach and be in the Army at the same time Robert's choice illustrates which of the following concepts?
А
The conflict between social and private interests
Oo
The role of incentives when people choose,
O
Every choice has an opportunity cost.
o
The marginal benefit of the choice

Which statement in the passage best reflects sumer's opinion of the dred scott decision? a."i speak what cannot be denied." b."[the] judgment was sustained by a falsification of history." b."the opinion was more thoroughly abominable than anything history." i speak what cannot be denied when i declare that the opinion of the chief justice in the case of dred scott was more thoroughly abominable than anything of the kind in the history of courts. judicial baseness reached its lowest point on that occasion. you have not forgotten that terrible decision where a most unrighteous judgment was sustained by a falsification of history. -charles sumner, 1865