Which statement best describes a graph of paired points that form a proportional relationship?
A) A straight line can be drawn through all the points, and the line passes through the point (0, 0).
B) A straight line can be drawn through all the points, and the line passes through the point (2, 1).
C) A straight line can be drawn through all the points, and the line passes through the point (10, 5).
D) I don't know.