What is the main idea of this selection?
A) The Panama Canal is an extraordinary feat of engineering and construction that was built despite enormous obstacles.
B) The Panama Canal transformed sea transport by making different parts of the world more accessible to one another.
C) There were many failed attempts to build the Panama Canal before it was successfully completed.
D) The Panama Canal functioned well for almost a century before improvements were needed.
What is the main idea of this selection?
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The correct answer is A) The Panama Canal is an extraordinary feat of engineering and construction that was built despite enormous obstacles.
Explanation: This option captures the overall significance of the Panama Canal as an impressive engineering achievement, highlighting the challenges that were overcome during its construction. While the other options address specific aspects of the canal’s impacts and history, option A encompasses the main theme of its construction and the remarkable engineering involved.
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