<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be the "Slave trade", since this trade gave Britain a large amount of free labor with which to build settlements and extract wealth from the Caribbean in the form of sugar. </span></span>
Answer:
B. Afghanistan
Explanation:
After the Russian Revolution of 1917, the Soviet Union incorporated most of Central Asia; only Mongolia and Afghanistan remained nominally independent, although Mongolia existed as a Soviet satellite state and Soviet troops invaded Afghanistan in the late 20th century.