The correct answer to this open question is the following.
Although there are no options attached we can say the following.
A consumer wants to buy a television set. She is deciding between a standard model with a 19" screen or a more expensive deluxe model with a bigger screen and a built-in DVD player.
She can use an analysis of costs and benefits to help her choose in that the analysis would clearly help her identify the benefits of purchasing decisions in comparison to the other.
If she does this cost-benefit analysis, she would be able to measure the benefits of her decision, taking into consideration the cost associated with making that decision. In this case, if she buys the expensive TV with the DVD player included, it is more expensive. Probably, if she buys the economic version of the TV, she could have saved enough money and get a cheaper DVD player, and save some extra money to buy another product.