A cultural trait is best defined as

the hearth from which basic customs, innovations, and ideologies transformed the world.
a single attribute of a culture such as the types of clothes people wear and the food they eat.
the spreading of customs, ideas (such as democracy), and products from one culture to another.
the process of a less dominant culture adopting the characteristics of a more dominant culture when the two cultures
meet.
a complex of common values, beliefs, and behaviors that distinguish one culture from another.