The correct answer is declaring war
D.<span>All of the above are true.
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<span>Social mobility is the movement of individuals, families, households, or other categories of people within or between social strata in a society. It is a change in social status relative to others' social location within a given society.</span>
Answer:
He visited the states of Southeast Asia, the coast of India, the Persian Gulf, the Red Sea, and the east coast of Africa. Zheng died in Calicut in the spring of 1433, and the fleet returned to China that summer.