D. Primary concerned. That's the anserr
1. Ford= Model T
2.Wright= Airplane
3. Whitney= Cotton Gin
4. Field= transatlantic cable
5.Hargreaves= Spinning Jenny
6. Cooper= Steam locomotive
7.Howe= sewing machine
Hope this helped!
The answer is A. Ethnic groups
Answer:
Explanation:
The Lincoln–Douglas debates were a series of seven debates between Abraham Lincoln, the Republican Party candidate for the United States Senate from Illinois, and incumbent Senator Stephen Douglas, the Democratic Party candidate.
To gain the southerners' support, Douglas proposed creating two territories in the area–Kansas and Nebraska and repealing the Missouri Compromise line. The question of whether the territories would be slave or free would be left to the settlers under Douglas's principle of popular sovereignty
