Answer:
The correct answer is C. when income increases, demand for a normal good increases while demand for an inferior good falls.
Explanation:
The normal good is that whose quantity demanded for each of the prices increases when the rent increases. A lower good is one whose quantity demanded decreases when income increases. The inferior goods are usually those for which there are higher quality alternatives. When it comes to a normal good, increasing the income of the consumer increases the quantity demanded at each price. Causing a shift in demand to the right.