a view of the world that reflects the writer’s cultural beliefs
a fairy or sprite with magical powers that helps the main character
a category of literature, such as a play, novel, or poem
a symbol or theme that appears in stories from many different cultures
I would go with the last one- a symbol or theme that appears in stories from many different cultures. An archetype is kind of like a blueprint which authors add onto, so they carry through several cultures and stories as well as myths and legends.