An example of a relationship conflict is O a. fighting over what to watch on television
O b. arguing over politics
O c. disagreeing over who gets to set the rules
O d. trying to convince a professor to change a grade

the correct answer for this question is:

it is system invented in 1872 that produced the first illusion of movement. basically it was a disk with a series of drawings around the edge, showing the same object in slightly different poses. when it was spun, it created the illusion of movement.

found this online : )