C: more slaves were purchased to work on cotton plantations in the south.
Answer:
D.
Explanation:
The term 'splendid isolation' was used to refer the policy of Britain during the 19th century.
During the 19th century, Britain had its empire expanded all over the world. Amost 1/4th of the world population was a part of British empire. Therefore, Britain had no interest in forming allies with other European countries.
The term, therefore, referred to staying out of any territorial disputes between other European nations. Thus option D is correct.
<span>One is economic and the other is political</span>
