The "iron curtain" Winston Churchill referred to

The iron curtain was a metaphorical separation between the West, and Russia.

Explanation:

Following WW2, the Western powers and Russia had differences in ideology pertaining to the economic system to be used for development. Russia favored communism, while the western powers favored capitalism. Winston Churchill used the term "iron-curtain" to allude to the separation between ideologies in the European hemisphere. It wasn't until the development of the Berlin wall that there was a non-metaphorical/physical separation between the ideologies.

the answer is d. selective incorporation. (apex)

which statement best describes the relationship between the fourteenth amendment and the african american civil rights movement?