Psychologists Have Found It Difficult to Define Personality Because

Multiple Choice

Psychologists have found it difficult to define personality because

A) psychologists are not smart enough to determine the boundaries of human personality.
B) personality has a common sense definition that psychologists find hard to falsify.
C) the idea of studying human personality is a rather new concept in psychology.
D) any definition of personality needs to be sufficiently comprehensive to include a multitude of concepts.