The great increase of the slave population on the first half of the nineteenth century was largely due toa-the reopening of the african slave trade in 1808b-larger imports of slaves from the west indiesc-natural reproductiond-reenslavement of free blackse-the deliberate breeding of slaves by plantation owners

The answer is: c-natural reproduction

Explanation:

During the nineteenth century slavery expanded.The centrality of enslaved women’s reproduction to the perpetuation of slavery was also evident in slave owners’.

b. martin luther king jr. wrote and spoke "i have a dream"

explanation:

i know this 100 percent is correct   b. is the best one. < 3

as general terms,  indian territory,  the indian territories, or  indian country  describe an evolving land area set aside by the  united states government  for the relocation of  native americans  who held  aboriginal title  to their land. in general, the tribes ceded land they occupied in exchange for  land grants  in 1803. the concept of an indian territory was an outcome of the 18th- and 19th-century policy of  indian removal. after the  civil war(1861–1865), the policy of the government was one of  assimilation.