Answer:
b. decrease in the demand for the good.
Explanation:
An inferior good is a good whose demand falls when income increases and rises when income decreases.
A decrease in demand would lead to a leftward shift of the demand curve.
Inferior goods contrasts to a normal good. A normal good is a good whose demand increases when income rises and falls when income reduces.
Only a change in the price of a good leads to movement along the demand curve for that good.
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