Yes, that's a true statement.
The Silk Road was an ancient network of trade routes for centuries
I'm pretty sure (1.) is A, and I know for a fact that (3.) is D because slavery was a regular practice between quarreling tribes. I have no clue what (2.) is. Best of luck.
A muckraker is a journalist who devotes their work to uncovering topics that might be overlooked or ignored by the powers that be. That said, a muckraker is D a writer who exposes unsafe working conditions.
The Spheres of Influenced meant that different countries (such as Britain, France, and the U.S.,) were able to control parts of the eastern coast of China and build up not only the area they occupy, but also structure the government.
An example can be found in the British's sphere-of-influence, in the city of <em>Hong Kong</em>, where the government (though recently eradicated) had a more democratic government that modeled the British government.
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