Answer:
The correct answer is: Decrease in demand.
Step-by-step explanation:
The difference between changes in quantity demanded and changes in demand rely on the fact that changes in quantity demanded are driven mainly by changes in the price of goods or services while changes in demand reflect changes on consumers' preferences and income.
Thus, a change from wired internet to wireless internet changes depends on consumers' preferences, thus it represents a change in demand. Then, demand for wired internet will decrease since the demand for wireless internet will increase due to lower prices.