吃月饼 (Chī yuèbǐng): eat mooncakes
赏月 (Shǎngyuè): admire the moon
吃饭 (Chīfàn): have a meal
(The origin of “中秋节 Mid-Autumn Festival.”)
Nǐ zhīdào Zhōngguórén rúhé qìngzhù zhōngqiūjié ma?
Do you know how Chinese people celebrate the Mid-Autumn Festival?
Tāmen chángcháng zài zhōngqiūjié de shíhòu chī yuèbǐng, chī tuányuán fàn huòzhě shǎngyuè .é
They often eat mooncakes, have a family reunion dinner or enjoy the moon during the Mid-Autumn Festival.
From the dialogue, we understand that eating mooncakes and admiring the moon are both traditional Chinese customs for the Mid-Autumn Festival. However, having just a meal is a daily activity that everyone participates in all the time. Therefore, the correct answer is C.