Protocols created by are most likely to be accepted and successful.

a. money supply  

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i would say iii (3) because in order to compare a price you have to use as a reference other near stores because it's its

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consumer credit. an advantage is that it allows consumers to afford expensive goods and services now, increasing their standard of living. however, a disadvantage is that it creates a trap for debt, if people do not have self control, they may see themselves filing personal bankruptcy.