A circular argument occurs when the conclusion of an argument is assumed in the premises, essentially restating the claim in different words without providing valid reasoning.
Among the options provided, A) "this movie did poorly in theaters because people did not go to see it" is the best example of a circular argument. It essentially restates the claim that the movie did poorly by saying that people didn’t go to see it, with no additional justification or reasoning provided.
The other options present different types of reasoning but do not have the same circular structure.