The correct answer is: "allowing goods to be shipped further".
The spread of the internal combustion engine allowed to developed faster means of transport with great capacity, which enabled to transport large amounts of goods at a low cost. Companies were able to cheaply transport their products to further places, therefore the markets where they could operate widened significantly. A progressive market integration process took place as technologies allowed the development of more efficient production and transportation systems.
It depends on your definition of hero, I guess. The fact that Gandhi and MLK did not use force to advocate for their opinions was mature and moral. They did not give up the first time. But maybe if the cause is correct, one might have to break the stated law, and become a hero.
The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
The ways in that fears about tyranny and abuse of power led to the revolutionary war and impact debates in the first decades of the Republic were the following.
The American colonists were tired, upset, and infuriated by the many aggressions, injustices, and heavy taxation imposed by the English monarchy on the 13 colonies.
More and more, the Patriots were willing and able to demand the independence of the colonies from the government of England. They were mad at the taxation such as the Navigation Acts, the Stamp Act, or the Tea Act, and many more. The Boston Massacre was another incident in which British troops attacked the colonists in Boston.
And to make things worst, colonists did not have any voice or representation in the British Parliament.
Colonists were tired from the tyranny of the English king and that is why they started the Revolutionary War of independence against Britain.
