Regarding the Causes of Mood Disorders,which of the Following Statements

Multiple Choice

Regarding the causes of mood disorders,which of the following statements is FALSE?

A) Seasonal affective disorder (SAD) involves depression that occurs during the spring and summer months.
B) Heredity appears to be a major factor in major mood disorders, especially bipolar disorders.
C) People who have a particular version of a gene are more likely to become depressed when they are stressed.
D) If one identical twin is depressed, the other has a 67 percent chance of suffering from depression with a probability of 19 percent of both fraternal twins becoming depressed.