The book the lord of the rings by j. r. r. tolkien, in which the main character must go on a journey to destroy a magic ring, is an example of which plot archetype?
comedy
rebirth
tragedy
quest

This is a perfect example of an archetypal quest. The main character is a hero has an important mission that brings him into a different world. In a quest, the hero is an ordinary fellow that the reader can relate to, but who has hidden strengths that make him ideally suited. It is usually stated or implied that he is fated to complete this quest. He fights against obstacles and there may be loss and tragedy along the way, but in the end, goodness and his cause always prevail.

That's something your gonna have to yourself with buddy!