Many Personality Theorists Talk About the "Big Five" Personality Traits

Many personality theorists talk about the "big five" personality traits. Suppose someone proposed that people have a sixth "big" personality trait. To demonstrate such a trait, researchers would have to demonstrate that it

A) is equally common in members of all ethnic groups.
B) is equally present in people of all ages.
C) is not highly correlated with any of the original big five.
D) is a combination of two or more of the original big five.