You should treat people according to the way
a. you think they deserve
b. you see them dress
c. you think they treat you
d. you want to be treated

D because if you don't people might not be your friend because your probably be rude to them or something

Currently, as of february 2016, an american traveling in france would be by the exchange rate. the weakness of the euro and the strength of the us dollar means that items in france cost less to an american than they otherwise would. of course, if this trend reverses and the us dollar weakens and the euro strengthens, such as was happening in early 2008, an american traveling in france would have an adverse experience because items would cost relatively more.