Answer:
A. A movie that tells the story of the two brothers
Explanation:
A medium is a method we use to relay some kind of information. For example, news can be relayed through newspapers, television, radio, or the internet. Painters also use different mediums to create their paintings, e.g. oil paint, acrylic paint, watercolor, etc.
Stories can also be told through different mediums. Most of them are written as literary works. Some of them get their movie adaptation, i.e. get turned into a movie. This is how the same stories can be told using different mediums.
Options B, C, and D show us how the same story can be retold using the same medium. This is why option A is the correct one.