Some Consumer Researchers Have Focused on One Specific Trait, Such

Some consumer researchers have focused on one specific trait, such as innovativeness, to predict the adoption rate of new products. This one trait has been used to describe how quickly new products will be adopted by consumers. Focusing on this one trait, innovativeness, is an application of which approach to studying consumer traits?

A) unidimensional perspective
B) nomothetic perspective
C) nominal perspective
D) consciousness perspective
E) primary perspective