<span>Social darwinism and laissez faire economics were most closely associated with the interests of big business owners. Big business owners had the most to gain from embracing such tactics. With social darwinism and laissez faire these business owners could prevent the government from trying to regulate them and they could take out rival companies and potentially monopolize whichever market they operated in.</span>
The answer is B, good luck my dude
Industrialization drastically increased the speed of change because the production of new goods always had to increase and be faster at the end of the day. The demand was ever-increasing which made change much more desirable when it was in the direction of increased production.
In this way industrialization increased the speed of change.