Why did many u. s. senators refuse to sign the treaty of versailles?

The primary goal of the abolitionist movement was to a) immediately emancipate or free all enslaved people. b) allow the gradual release of enslaved people. c) end the importation of enslaved people from africa. d) make mandatory the education of all enslaved people.

Which type of constitutional power allows congress to regulate immigration and naturalization?

Look at the graph. where p is price and q is quantity, what might cause a move from b to a?