Which of the following is not one of the cultural effects that result from New Zealand's isolation?

Which of the following is not one of the cultural effects that result from New Zealand's isolation?

a. New Zealand has strict immigration laws.

b. Kiwis frown on other New Zealanders who travel overseas.

c. Most cars in New Zealand are older than the cars in other places around the world.

d. There is no sense in New Zealand that anyone feels that it is necessary to engage directly most of the major issues that arise in world politics.