Which of the Following Statements Is True

Which of the following statements is true?

A) Evidence suggests that bipolar disorder and unipolar disorders have a different genetic basis
B) Evidence suggests that bipolar disorder and unipolar disorders have the same genetic basis
C) Evidence suggests that bipolar disorder and unipolar disorders have a similar genetic basis as schizophrenia
D) Evidence suggests that bipolar disorder and unipolar disorder have a similar genetic basis as somatoform disorders