The Most Recent Research Evidence Suggests That the Relationship Between

The most recent research evidence suggests that the relationship between the brain (structure, function, neurotransmitters) and psychosocial factors (socialisation, rearing, life events) is best described as

A) a system where our brains directly influence our behaviour and psychosocial factors but not the other way around.
B) an interaction where the brain affects our psychosocial factors and psychosocial factors impact our brain.
C) a system where our behaviour and psychosocial factors impact our brain but not the other way around.
D) far too complex to ever understand whether one system influences the other.