Answer:
D
Explanation:
Normal goods are goods that are goods whose demand increases when income increases and falls when income falls
Consumer surplus is the difference between the willingness to pay of a consumer and the price of the good.
Consumer surplus = willingness to pay – price of the good
If consumers income increases, their demand for cell phone would increase. This would lead to an increase in price of the good.
Also, willingness to pay would ncrease as a result of income increase
If increase in willingess to pay exceeds increase in price, consumer surplus increases, if not it reduces. If the increase is the same, it remains the same