A restaurant owner plans to replace the restaurant's tables and chairs, which are currently of a generic design, with sturdier models from a manufacturer in Maine. The newer tables and chairs are more expensive, but they are extremely durable, so the owner expects to have to replace them far less frequently, saving money in the long term.
Which of the following must be studied in order to evaluate the argument presented above?
【选项】
The degree to which the price and availability of the new designs and those of the old designs are equally dependable in the long run
选项是否正确？