The correct answer is cause-and-effect.
As the name itself says, cause and effect relationships have to contain a cause and an effect. A cause for an action is what motivates a character to do a particular thing, and the effect is the result of such actions. Obviously, these kinds of relationships could move the plot forward and give rise to new relationships and events within a story.
I think the answer is D but I'm not sure
Print was more of a summary whereas radio was more into detail
Words such as because, since, while, before, during, after, and instead of can link independent clauses or phrases and are called conjunctions.