The Antitrust Laws Were Passed in Response to General Changes

The antitrust laws were passed in response to general changes in the national business environment caused by:

A) the United States gaining independence from England
B) the expansion of the United States west of the Mississippi River following the Louisiana Purchase
C) the rise of the railroads and industrialization in the latter part of the 1800s
D) the stock market crash of 1929 and the Great Depression
E) the rapid boom in consumer products following the Second World War