What was one source of income in the middle colonies?

i believe the answer is:

~b. the elastic clause gives the supreme court original jurisdiction in a limited number of cases.

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depending on what kind of map for example a pltical maps works in many ways this iss how it works it shows the areas and places the democratics and the repbulcicans reside for example if   texas chooses trump for president there a republican state and if   califronia chooses hillary there a democratic state.