Which of the Following Statements About Rumination Is True, According

Which of the following statements about rumination is true, according to the ruminative reponse styles theory?

A) Rumination is a protective factor against depression.
B) People who ruminate a great deal tend to have more lengthy periods of depressive symptoms.
C) Gender differences in depression are explained by ruminative styles.
D) Biological factors have been most clearly linked to the development of rumination in those who do not have a family history of mood disorders.