A Client's Spouse Asks, "What Evidence Supports the Possibility of Genetic

A client's spouse asks, "What evidence supports the possibility of genetic transmission of bipolar disorder?" Which is the best nursing reply?

A) "Clients diagnosed with bipolar disorders have alterations in neurochemicals which affect behaviors."
B) "Higher rates of relatives diagnosed with bipolar disorder are found in families of client's diagnosed with this disorder."
C) "Higher rates of relatives of clients diagnosed with bipolar disorder respond in an exaggerated way to daily stress."
D) "More individuals diagnosed with bipolar disorder come from higher socioeconomic and educational backgrounds."