The Belgium had two colonies in Africa, the massive Belgian
Congo (now Congo) and Ruanda-Urundi (now countries of Rwanda and Burundi), and
that’s it. Compare that to the Brits that had colonies in nearly all
continents. Compared to the British, Belgian rule on its colonies was harsh.
The Belgians extracted resources from its colonies nearly at gunpoint
(especially in Congo) to build magnificent public infrastructure in the mother
country, while doing little to educate native Africans in the colonies.The British retained traditional leaders and gave them power with colonial oversight, and established schools on its colonies.
<span>The Belgian colonial Empire originated with the arrival of Belgium in the partition of Africa, where King Leopold II managed to obtain most of the region of the Congo. After the First World War, the Belgians obtained from Germany, through the Treaty of Versailles, the colony of Rwanda-Urundi. King Leopold II of Belgium established a private colony. The British Empire comprised colonies and other territories ruled by the United Kingdom. The climax of the empire occurred during the so-called imperial century through a series of phases of expansion with trade and colonization. The Empire increased the technology and the economic growth of the United Kingdom.</span>
The best option from the list would be "b. the California Gold Rush of 1849 Eliminate" since this is the event that drew thousands of people to the west, thus occupying the US from coast to coast.
The sinking or Lusitania on 7 May 1915 was a significant event during WW1. It was a passenger liner sunk by German submarine during World War 1. It lead to America declaring war on Germany.