Final answer:
Option (D) They lack social skills and empathy, is the correct statement about psychopaths. They may still be successful in some professional environments and are not necessarily involved in criminal activities or identifiable by physical traits.
Step-by-step explanation:
Psychopaths do make up a small proportion of the population, but there are misconceptions about their characteristics and behaviors. The correct statement about psychopaths from the options given is (D) They lack social skills and empathy. This trait is linked to the core attributes of psychopathy, which include a lack of guilt, remorse, and empathy, as well as superficial charm and manipulativeness, not necessarily a propensity for criminal acts or easily identifiable physical characteristics.
While psychopaths may have reduced social skills, this doesn't preclude them from being successful in certain professional environments where emotional detachment might be advantageous. It's also essential to note that not all psychopaths are involved in criminal activities; criminal behavior is not a necessary component of psychopathy. Additionally, there are no specific physical characteristics that would allow one to easily identify someone as a psychopath.