Respuesta :

Answer:

ray DC

Step-by-step explanation:

Two rays are said to be opposite to each other if their endpoints are the same, they exist on the same plane and  form an angle of 180° between them i.e they point in exact opposite directions

Ray DE has end-point D

Ray DC has end-point D and points in the exact opposite direction to ray DE on the same plane

So the answer is ray DC