What is a concurring opinion?

a. the declaration that is created to officially reject the decision by the court
b. the statement written that adds information or facts to the majority opinion
c. the precedent that lower courts use to justify their decisions in major cases
d. the written statement that explains why the minority opinion is justified

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.