Question 1 of 5 Which phrase best describes an opportunity cost?
A. The price of a product determined by supply and demand
B. The value of what is lost when picking one choice over another
C. The money a business makes after paying for its expenses
D. The amount of money a business has to make a product
SUBMIT

In what two ways were the tang and song dynasties of china similar? they jointly built the grand canal. they were economically strong. they had weak military forces. they ruled for about 300 years. they discouraged buddhist ideas.

But on an april morning in 1959, i heard a mother of four, having coffee with four other mothers in a suburban development fifteen miles from new york, say in a tone of quiet desperation, “the problem.” and the others knew, without words, that she was not talking about a problem with her husband, or her children, or her home. suddenly they realized they all shared the same problem, the problem that has no name. which best describes the connotation of the word “desperation”? negative, because the woman is feeling confused negative, because the woman is expressing hopelessness positive, because the woman is expressing herself positive, because the woman and the mothers are in agreement

Are people more motivated to change from positive or negative experiences, like slavery, womens rights, and any other historical movements/moments? i need more factual information than opinions.