Read each question and choose the best answer. What are economists referring to when they say "choosing is refusing"?
A. Opportunity cost
B. "Guns or butter"
0 C. Marginal cost
D. Thinking at the margin

Which statement is the most accurately describes the reasons for the seven years war in north america

Which sentence describes an experience wealthy and poor women shared during the industrial revolution

What is the columbian exchange? o a. the changes that resulted from europeans settling in the new world b. the relationships that columbus and his men had with the natives they met o c. the ships that columbus bought with money from the king and queen of spain o d. the increase in the number of native american towns in the new world