Geometry

The answer is D. The intersection of line m and line n is point D.

The Line Intersection Postulate states that if two lines intersect, then their intersection is exactly one point.

A and B.“Line m contains points A and D” and “Line n contains points B and D” are examples related to the Two - Point Postulate or the fact that a line contains at least two points. They do not illustrate the Line Intersection Postulate.