Geometry

The answer is D.Plane FGE.

1. Recall the naming rules for a plane:

A plane can be named by three non - collinear points that lie on the plane.

A plane can also be named by a single capital letter (in this case, the plane is already named as plane ).

2. Analyze each option:

A: The points , , ,  are all in plane . But for naming a plane using points, we usually use three non - collinear points. Since , ,  are collinear, naming the plane as "Plane FGHE" is not the standard way of naming a plane.

B: Sin...