没理解这道题的答案，老师能解释一下吗

问题如下：

A decrease in the price of a good will most likely be reflected in a

选项：

A.change in the intercept of the demand curve. B.change in the slope of the demand curve. C.downward movement along the demand curve.

解释：

Solution

C is correct. A decrease in the price of a good will cause consumers to demand more of a good and be reflected by a downward movement along the demand curve.

A is incorrect. A change in the intercept of the demand curve (a shift up or down without a change in slope) occurs when a variable other than own-price takes on a different value.

B is incorrect. The slope of the demand curve is the coefficient on Q (quantity) in the inverse demand curve, showing the change in P (price) for a 1-unit change in Q. A change in the slope of the demand curve occurs when the relationship between price and quantity changes.