<span>A and D, or the fear of nuclear attack and increased study of science and math are the effects of the arms race. The nuclear arms race was an opposition between the United States and the Soviet Union for atomic weapons prevalence enduring all through the Cold War.</span>
"<span>C. A 50-year-old corporate executive who holds a master's degree in business" is the most likely to vote from this group of people. Older people tend to be more proactive in politics. </span>
<span>A single controlling authority. Mayan city-states were urbanized.
Hope this helps!</span>
<span>The correct answer is A. World War 1. Although, that was only formally, Canada gained it's self governance much much earlier, back in 1867 when it established its own autonomous government but within the British Empire. Following WW1, everything was formalized and it gained complete independence from Britain. </span>