Answer:
B. Indian Removal Act of 1830
Explanation:
Indian Removal Act of 1830 was the law that forced American Indians to migrate to the West.
I think the correct answer from the choices listed above is option 4. The refrigerator car is the invention which was most important in revolutionizing the meat industry. It <span>is a </span>refrigerated <span>boxcar, a piece of railroad rolling stock designed to carry perishable freight at specific temperatures.</span>