Beginner Level 初级 (chūjí)
The right answer for this online Chinese quiz is B: 月饼 (yuèbǐng).
A. 汤圆 (tāngyuán) means glutinous rice balls.
B. 月饼 (yuèbǐng) means moon cakes.
C. 粽子 (zòngzi) means rice dumplings.
In China, Moon cakes are a traditional food for the Mid-autumn Day; glutinous rice balls are the traditional food for Lantern Festival; rice dumplings are the food for the Dragon Boat Festival.