The correct answer is (C). During the period of detente, Brezhnev continued to develop the Soviet military. He continued to build nuclear weapons that had the capacity to strike Western Europe and North America, continued to manufacture armaments and military vessels, and continued to build up the size of the Soviet military. These actions lead to the United States and its allies to doubt Brezhnev's intentions to heal relations with other nations and work toward an easing of military and political hostilities.
Another of the biggest population shifts in American history was the Great Migration. Between the 1910s and the 1970s, around 6 millions Black American fled from the American South to Northern, Midwestern or west.
One of the biggest ethnic groupings in the US is made up of Black people. Although most Black American are of African descent, many also have non-African forebears. Most African Americans are descended from enslaved individuals who were forcibly transported from their native Africa to work in the Age Of exploration. Their legal options were severely constrained, and they had long been denied the chance to participate in the economic, social, and social changes of the US. But Black American have contributed fundamentally and enduringly to American history and culture.
Learn more about Black American here:
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It can delay the time for medicine or the right treatment to get to "said" patient. Potentially being a life threatening situation/ Long term issue. Due to human error, the patient wouldn't improve and possibly get worse, and the doctor might not notice till next meeting.
(That's in general what I thought the answer could be. Also heh, you from health science class as well?)