Which of these is a possible cause of bipolar disorder?
a. an imbalance in the naturally occurring neurotransmitters in the brain
b. surviving a traumatic event or living in a harmful environment
c. problems in the brain that regulate fear and other emotions
d. living in a culturally diverse community

An imbalance in the naturally occurring neurotransmitters in the brain - A.

B. Surviving a traumatic event or living in a harmful environment

chuck around 35 cubic feet of dirt amount equivalent to the weight of the dirt of 700 pounds            

                            hope this

can i know what the options are for this question ? ?