Who is the inventor of Aeroplane?
(A) Otto Lehienthal
(B) Vannevar Bush
(C) Frank Whittle
(D) Orville Wright and Willbur Wright
Correct Option is: D
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Who is the inventor of Aeroplane?
(A) Otto Lehienthal
(B) Vannevar Bush
(C) Frank Whittle
(D) Orville Wright and Willbur Wright
Correct Option is: D