题目内容：
阅读以下内容，回答题。CHINA
CHINA
Free Dish
Choose any one dish from the menu on the back.
(restricted to $$ or less food items) With any order over $40(before taxes).
Not valid in conjunction with any other offers.
Free Chicken WingsWith any order over $18(before tax). One per order only.
Not valid in conjunction with any other offers.
Pick Up
Special
20% OFF
Not valid in conjunction with any other offers.
Cash payment only. Daily Combo &Complete Dinners excluded.
2145 Jane Rd.
(206) 755-1235
How can one receive a meal for free? A．By paying for the meal in cash
B．By ordering over a certain amount
C．By picking up the food
D．By coming to the restaurant at a certain hour
参考答案：
答案解析：