Janet Yang, who produced The Joy Luck Club, mentions that she focuses much of her professional life on studying and understanding the Chinese market for U.S.-produced films. Which of the following statements likely explains Ms. Yang's emphasis on the Chinese market?

a

The majority of films produced in Hollywood each year feature Chinese characters or settings, making China a natural market for these films.

b

For the past several decades, exchange rates between the U.S. dollar and the Chinese yuan have almost always favored the United States.

c

The Chinese government has conferred "most favored nation" trading status on the United States, thus making China an excellent trading partner.

d

China is America's largest trading partner, accounting for more than $550 million in total trade each year.