Mary lou was her high school’s valedictorian, starred in the high school musical, and was an all-state athlete on the cross country team. she was the best employee at dave's z-pub, where she worked through high school. she is great at english, math, and music. she can do just about anything better than everyone around her. how could she possibly benefit from trading with others if she is better at nearly everything?

 Explanation: As mentioned in the question about Mary Lou, she is almost better than others in mostly every field like music, English, math, and also a good employee etc. It is well known that she can provide advantage in many filed

While considering her work at trading area, it requires mostly comparative advantage to perform well than other, which is not an expertise of Mary.

As she cannot persist betterment in every field, she does not have skills required in trading which may lead to increasing her potential by trading something.

answer; erp systems;