Marshall and Joe are brothers. Both are very interested in board games and both are very intellectual. Marshall is very kind and caring while Joe is a bit of a nerd. What is the role that genetics has likely played in the personalities of the two brothers?A) most likely nothing, it is all about life experienceB) maybe some, after all, they probably grew up togetherC) even split, genetics and life experience have shaped themD) probably little, genetics are a big factorE) everything, you are who you are

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