Geometry

The answer is B..

 

1. Recall the definitions of a ray and a plane:

A ray is a part of a line that has one endpoint and extends infinitely in one direction. A plane is a flat, two - dimensional surface that extends infinitely far.

 

2. Analyze each option:

A: line

A line is not a ray. Line  is a line that is perpendicular to plane , so it is not a ray on plane .

 

B:

 The ray  has an endpoint  and extends infinitely through point . Since both points  and  lie on plane ,   is a ray that is on plane .

 

C: