Answer:
Option (c) is correct.
Step-by-step explanation:
Option A:
Income of the consumer is related to the normal and inferior goods.
If there is an increase in the income level of the consumer then as a result the demand for normal good increases and there is a rightward shift in the demand curve of normal good.
Option B:
Price of related goods: substitute goods and complimentary goods.
For example,
If there is an increase in the price of one good then as a result the demand for the substitute good increases which will shift the demand curve of substitute goods rightwards.
Option C:
If there is an increase in the price of the product then as a result the quantity demanded for that product decreases. This shows that price of the product would not change the demand but the quantity demand.