Harold, an Economist, Asserts That International Businesses Are Likely to Be

Harold, an economist, asserts that international businesses are likely to be significantly affected by Great Britain's exit from the European Union. Which of the following statements supports Harold's assertion?

A) The refugee crisis in Europe is likely to worsen.
B) The financial industry in Europe is likely to do business anywhere on the continent and move employees around without worrying about visas.
C) The British are likely to find it difficult to move money, people, and products across Europe.
D) London's position as a world financial center is likely to strengthen.