Which of the Following Statements Is True of Panic Disorder

Which of the following statements is true of panic disorder?

A) The brain chemical, lactate, is deficient in individuals with panic disorder.
B) In terms of biological factors, genetic predisposition is a likely cause of panic disorder.
C) In terms of sociocultural factors in the United States, men are twice as likely as women to have panic attacks.
D) Individuals who suffer from panic attacks are less likely to display overgeneralization of fear learning.