Final answer:
An increase in the price of printers, with all other factors being constant, leads to a decrease in the quantity of printers demanded according to the law of demand. This law portrays an inverse relationship between price and quantity demanded. Option D.
Step-by-step explanation:
When the price of a good like a printer increases and all other factors remain constant, this scenario applies to the law of demand, which suggests an inverse relationship between price and the quantity demanded.
Therefore, if the price of a printer rises and all other influences on buying plans remain the same, in the market for printers, the quantity of printers demanded decreases.
According to the law of demand, an increase in price results in a decrease in the quantity demanded because consumers' willingness and ability to purchase the good at the higher price is diminished.
They may seek alternatives or decide to forego the purchase altogether. Conversely, a decrease in price tends to increase the quantity demanded as the good becomes more attractively priced and more consumers are willing to purchase it. So Option D is correct.