Answer:
Option A, A steadily growing slave trade in the south, is the right answer.
Step-by-step explanation:
A shift from the manual-labor to a technologically based industry in the United States came to be known as the Industrial Revolution. During this time, machines greatly increased the production of goods and resulted in the economic growth of the U.S. This shift is believed to be the result of British Industrial methods of textile manufacturing, which was introduced by Samuel Slater. In this way, all the above options follow except a steadily growing slave trade in the South