Re-order paragraphs

c) By the beginning of the twentieth century, the western world was using various inventions of the Industrial Revolution, such as the automobile, aeroplane and radio.

a) These technological innovations challenged traditional notions of what was possible in cities.

d) This meant that the city became the key context and reference point for both human nature and humans.

b) As a result, the city often starred as the main character in modernist texts.