In 1960 there were a dozen u. s. states that made interracial marriages a. legal. b. common. c. illegal. d. none of the above

The correct answer is option c. Illegal. In 1960 there were a dozen U.S States that made interracial marriages illegal. These States were: Arizona, Colorado, California, Idaho, Montana, Maryland, Indiana, North Dakota, Nevada, Nebraska, South Dakota, Oregon, Wyoming and Utah.

In 1967, the United Supreme Court, taking the case of Loving vs Virginia as a precedent, declared the decision to make unconstitutional all laws that banned interracial marriage.

the correct answer is ) possibility.

demonstrating opportunity cost is done through production possibility.

the opportunity cost can be demonstrated using the production possibility frontier or curve. this graphic shows the total number of possibilities for two products when we have the resources needed and used in an efficient manner. the main resources could be money, labor, and technology. the curve shows that the production of one good increases when the production of the othe