Answer:
the answer is c The meatpacking industry grew because railroads were used to deliver large quantities of meat to processing plants in major cities.
It about 25% of southern white families owned slave in the year 1840. So the answer in this question is D. 25% The southern white families become slave or owned slaves by the rich and powerful people in the southern in the year 1840. The cruel world in that year in the southern, and they think it become hell because of the slavery they felt.
Tbh I’m not to sure but it reminds me of that time where after ww2 I believe many soldiers came home and had babies know as the baby boom