1.In the film, Vik Muniz refers to transformation as "the stuff of art, transforming material and ideas." What do you think he means by that?

i believe the answer is d.

answer is b.

  it is always the best policy to have good communication and good relations between individuals and, specially, between leaders of the countries. for this purpose, among others, there is a common place, the united nations, where the representants can present his and learn about the other country's policies.