How is the following compare-and-contrast essay organized?

Football means different things to people in different countries. For Americans, it is a game with set plays that are designed to march an oblong ball down the field in a near-military fashion. For much of the rest of the world, football, or soccer, is a display of free-flowing action where a round ball is in constant motion up and down the field.

A.
by chronological order

B.
point by point

C.
subject by subject

D.
by order of importance