Historians have long debated the causes of the fall of the Roman Empire, with theories ranging from economic decline to military overreach; however, an increasing number of scholars now point to environmental factors, such as prolonged droughts, as significant contributors.
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Verbal·Craft and Structure·Text Structure and Purpose
easyWhich choice best describes the function of the underlined portion in the text as a whole?
A
It introduces a counterargument that the rest of the passage will refute.
B
It presents an emerging perspective that adds to existing explanations.
C
It dismisses all previous historical theories.
D
It concludes the discussion of the Roman Empire’s decline.