Britain's imperialist practices were often only great for Britain, not for the colonies, which was seen in the US, India, China, and many many other colonies which were on the verge of disaster because of imperialist ruling.
I'm at least 85% sure that the answer would be A, it seems like the most secure answer to give.
Answer: Marco Polo
Explanation: Marco Polo (1254-1324) was a Venetian merchant at the height of the Mongolian Empire, believed to have traveled through Asia. He set out with his father and uncle at age 17 and traveled overland along what later became known as the Silk Road.