When Determining the Similarity of One Work to Another in an Infringement

When determining the similarity of one work to another in an infringement question,some courts use a two-part test that asks whether the two works

A) have the same kinds of characters and have the same kinds of scenes.
B) appeared at about the same time and are in the same medium (e.g.,both are films) .
C) have the same general theme and express this theme in the same way.
D) are in the same medium and have the same kinds of characters.