Opened in 1883, the Brooklyn Bridge was the first longspan bridge to carry motor traffic, and it quickly became the model for the great suspension bridges of the following century. Spanning New York's East River, it provided the first traffic artery  between Manhattan Island and Brooklyn. Before that, the only transportation was by ferries, which were slow and could be dangerous in winter. The construction of a bridge over the EastRiver had been discussed since the early 19th century, but the outbreak of the Civil War in 1861 _ all consideration of the project. When the war ended in 1865, the bridge became an important issue once more. In 1867, the New York State passed an act setting up the New York Bridge Company for the purpose of constructing a bridge between Manhattan Island and Brooklyn. John Augustus Roebling was chosen to design the bridge. Born in Germany in 1806, he held aggressive views as a student and was listed by the German police as a dangerous figure. He emigrated to America in 1830 to escape political discrimination. Roebling proposed a bridge with a span of 1,500 feet (465 m), with two towers in the East River serving as the main piers. The bridge that was actually built is longer--1,597 feet (486 m), the longest suspension bridge at that time. According to the passage, which of the following correctly describes John Augustus Roebling?
He participated in the Civil War and was seriously wounded. He was the first person to propose the construction of the bridge. He was chosen to design the bridge because of his aggressive views. He moved to America because he was discriminated against in his home country.