Tokyo/Yokohama is city with the largest population in the world. It has over 33 million people.
Democracy is the correct answer
Idk if this will help but...
In geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. By extension, a line and a plane, or two planes, in three-dimensional Euclidean space that do not share a point are said to be parallel.