A Classmate in Your Psychology Class Tells You That She

A classmate in your psychology class tells you that she is a very positive person because she is right-handed or left-hemisphere dominant.Based on what you have learned about the biological influences on personality,which of the following would be the best response?

A) You would agree as research has shown that being left-hemisphere dominant causes higher levels of happiness.
B) You would disagree as personality is largely caused by genetics.
C) You would disagree as personality is the result of an interaction between biological and environmental factors.
D) You would disagree because her positive personality is more likely due to higher levels of serotonin.