单选题
On a hot day, the price and the quantity sold of ice creams both increase. This can reflect a ______.
A、
Shift in the demand curve to the right
B、
Move along the demand curve
C、
Shift in the demand curve to the left
D、
Shift in the supply curve to the right
【正确答案】
A
【答案解析】
[解析] 天气炎热，对冰淇淋的需求增加，需求曲线右移，导致冰淇淋的需求量和需求价格增加。
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