Much to the Annoyance of the United Auto Workers,many Japanese

Much to the annoyance of the United Auto Workers,many Japanese auto plants are not unionised.This demonstrates which concern?

A) International companies force employees to join unions against their will.
B) Companies can counter their bargaining power with the power to move production to another country.
C) International businesses will keep highly skilled tasks in its home country and farm out low-skilled tasks for foreign plants.
D) International businesses attempt to import employment practices and contractual agreements from a home country.