The correct matching of the imperial motives and the scenarios are:
Richard Watson, a British businessman, wanted to take advantage of his country’s control of Chinese trade. So, he moved with his family to China. - Economic
This refers to the reasons that make a person act or behave in a certain way for financial gain.
Hence, we can see that the other answers are:
Irene Dupont was a teacher who loved literature. She traveled to Senegal in Africa to help tribal children learn to read and write French- Humanitarian and Religious
John Hudson was the captain of a steam-powered ship for the British navy. On voyages across the Pacific, he could stop and refuel his ship at various Asian ports that his native country had exclusive access to- Military
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