Final answer:
Basketball has a considerable cultural and economic impact in China, where the sport is highly followed, NBA stars are idolized, and streetwear culture thriving.
Step-by-step explanation:
The conclusion best supported by the paragraph regarding NBA stars such as Michael Jordan being idolized in China and the growth of the associated streetwear culture is that basketball has a significant cultural and economic impact in China. This impact stems from the widespread following of the sport, the idolization of basketball stars, and the prevalent streetwear culture connected to basketball. In this context, basketball's influence extends beyond the court, leading to a strong market for streetwear and contributing to the sport's popularity.