When consumers purchase computers, they also often purchase virus protection to take care of the computer. As the price of a computer falls, the demand for virus protection shifts to the right. This means computers and virus protection are Choose one: A. substitutes B. normal goods C. complements D. inferior goods

Computer and virus protection is referred to as the complementary goods.

Explanation:

Complementary goods are referred to as that good where use of one good is linked with the use of other goods. Suppose in this case when a consumer buys a computer he or she also buys a virus protection, they act as a complementary goods. When the price of the computer falls there will be increase in the demand of virus protection as a result there will be a rightward movement or shift  of the  demand curve.

On the other hand when the price of the computer increases there will be fall in the demand of virus protection because due to rise in price there will be fall in demand that is people will buy less and the demand curve will shift leftward.

1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

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