Answer:
In the late 1830s and early 1840s, many more Americans started to move to Oregon. This was the era of the famous Oregon Trail. These settlers were motivated by a desire for land, not by a desire for furs. They were not going to Oregon to trade but rather to set up their own new homes.
Explanation:
The correct answer is C
China in the nineteenth century was afraid of free trade with other countries as the United Kingdom.
The first opium war in 1840 was the result of China's fear of free trade.
China lost the first war of opium and was forced to sign the Treaty of Nanjing and the United Kingdom could carry out trade in China by opening 5 ports for that purpose
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In the late 1400s and 1500s, the main reason for exploration in the New World was the need for alternate trade routes. They have no idea the Americas even existed, however.