Which of the following limited opportunities for freedmen in the civil war ended

I'm pretty sure the answer is the black codes.

The Black Codes were laws passed by Southern states in 1865 and 1866 in the United States after the American Civil War with the intent and the effect of restricting African Americans' freedom, and of compelling them to work in a labor economy based on low wages or debt.

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.