Answer :
Final answer:
The central idea of the passage is that the Wright brothers created an airship with great potential. The correct option is (d).
Explanation:
The sentence that best describes the central idea of the passage is option D: The Wright brothers created an airship that had potential that few could fully understand. This sentence captures the main idea that the Wright brothers developed an innovative and groundbreaking airship that had immense potential, but its significance was not fully recognized by many at the time.
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