Concept:Wright Brothers are credited with inventing the first successful powered aircraft.Explanation:Orville and Wilbur Wright were American aviation pioneers.They built and flew the first motor‑operated aeroplane on 17 December 1903.The flight took place at Kitty Hawk, North Carolina, USA.Other options: Balloon was invented by the Montgolfier brothers.Bicycle was invented by Baron Karl von Drais.Bus is not associated with the Wright Brothers.Answer:B. Aeroplane