$1000 Between the Start and Finish of the Project, the Exchange

$1000. Between the start and finish of the project, the exchange rate changes from 1.5 $/euro to 1.6 $/euro. Circle one:

A) the project becomes less expensive for the customer
B) the contractor receives more than the contracted price
C) since the price is set in the contract, the value of the project stays the same for both parties