Issues that discussed by US lawmakers coming to China with Chinese legislators including intellectual property rights, and ______.

A．They prefer sour food.
B．They prefer sweet food.
C．They prefer salty food.
D．They prefer spicy foo

A．About some aspects of social life in Thailand.
B．About some aspects of social life in Japan.
C．About what prints are popular among teenagers in Thailand.
D．About what prints are popular among teenagers in Japan.