The correct answer is A. The invention of the cotton gin.
Explanation
A cotton gin is a machine created during the late 18th century that has the utility of separating cotton fibers from their seeds and other objects attached to it quickly and easily. The invention of this machine contributed to the strengthening of slavery because it allowed the landowners of the south to start the domestic production of cotton cheaply and easily. However, once the export demand for cotton grew in the north and other countries, the landowners of the south acquired more slaves to supply that demand for cotton. This deepened slavery because none of the southern landowners wanted to set free the African-Americans who were bringing them huge profits from their work. So the correct answer is A.
Alexander Kerensky calls for
o the end of Rasputin's influence
Explanation:
The Harlem Renaissance occurred through the Progressive Era in the US. This time period marked many reforms in an attempt to gain government support for varying groups in the US. In the late 19th century, black activists began highlighting the conditions faced by blacks in the South following the end of Reconstruction. Ida B Wells wrote the Red Record showing the horrors of lynching while WEB Du Bois created the NAACP. This awakening coupled with WWI job opportunities caused many blacks to migrate North. As blacks moved North they settled in neighborhoods together where black culture began to grow with large numbers of blacks together. In New York, Harlem was the hub of writing, music, fashion, clubs, and activism. During the 1920s the jazz clubs would become the center of Jazz Age culture.
Answer:
c more highly skilled workers were needed.