Answer:
C. special effects artist
Step-by-step explanation:
A. is not the correct answer. The background animator is in charge of the color, atmosphere, and style of the animation.
B. is an incorrect answer. A 3D modeler is a person who is responsible for making and designing 3D models. They can help build design for the environment or characters in the animation, as look as it is 3D animation in question.
C. is the correct answer. Special effects artists, which include VFX (visual effects) artists, are the ones who design special tricks that add to the action, entertainment, and enjoyment of the movie or video.
D. is not the right answer. Character developer is the person who builds up the profile of the characters, based on the plot and setting.
E. is not the correct answer. In the animation process, the storyboard artist is the one who makes visual representations of the story by putting the idea into the picture.