Answer:
b. decrease in the demand for televisions today.
Explanation:
Since it is generally believed that, consumers buy more quantity of a particular commodity or product when the price of such commodity is lower and that they buy less, when the price is higher, which is a simple illustration of the law of demand.
Therefore, if people think that the price of televisions will decrease in the near future, that belief may cause a "decrease in the demand for televisions today."