The correct answer is A.
The origins of McCarthyism lie in a speech given by Joe McCarthy in Wheel West Virginia in 1950. In this speech he claimed to have a list of 207 names of individuals working for the US government that were communist or had ties to the Soviet Union. This claim shook the nation, as it increased a sense of paranoia and fear that the American government may be filled with communists.
The assassination of President Garfield in 1883
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The Annexation of Texas, the Mexican-American War, and the Treaty of Guadalupe-Hidalgo, 1845–1848. ... Accordingly, while the United States extended diplomatic recognition to Texas, it took no further action concerning annexation until 1844, when President John Tyler restarted negotiations with the Republic of Texas.
The Battle of Stalingrad is your answer
"The Battle of Stalingrad" was a battle fought in the Northwestern city of Stalingrad, in which throughout the "monthly (more like yearly) campaign, the Soviets held out against the German army, and won after the German troops ran out of supplies, and with inadequate equipment, they had to surrender.
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