Traits Such as Skin Color,hair Color and Texture,and Nose Shape

Traits such as skin color,hair color and texture,and nose shape are often chosen to determine race because:

A) They are easily visible.
B) They are the most important to human cultures.
C) They determine physical attractiveness and hence mating behavior.
D) They have greater biological importance than other traits (regardless of their other cultural importance) .
E) They occur in more consistent,predictable ways than other traits.