The principle of 'Movement' is defined as: а
A visual beat or tempo
b
Creating a strong focal point
с
A sense of motion or action
d
None of the above

might be C of B
Explanation: Movement is the principle of good design which gives the artist control over what the viewer sees next. Using this principle, the artist can create the path our eyes will travel as we look at a work of art.
(Hope this gives you a hint!)

The answer is colored light

The vertical lines if trees