What characteristics make these genres simalar in terms of structure

The correct answer to this open question is the following.

Although the question is vague and does not include options, context, or any further reference, we can help to comment on the following.

If you are talking about the different movie genres, then we would say this.

The characteristics that make these genres similar in terms of structure are the structure of the movie: the premise, the plot of the movie/the action, the location, and the characters of the story. These are what defines the type of movie genre that could be drama, comedy, action, thriller, terror, western, romance, children, adventure, and science-fiction basically. Most of these genres can have subcategories, according to the specific topic of the story.

they spoke the dravidian language. hope this , correct me if im wrong

it would be a. that is the only one i could think of