Studies indicate that potential buyers of an expensive product are more likely to go through with their purchase if they have first made a purchase of a related product, such as a less expensive product sold by the same company in the same place. Psychologists attribute this behavior to commitment bias, in which people's present actions are influenced by a desire to act consistently with their past actions. A company that sells expensive products will increase sales of these items by first inducing customers to buy less expensive, easy-to-sell items.
Which of the following, if true, most strongly supports the recommendation above?
【选项】
Not all companies that sell expensive products have inexpensive, easy-to-sell items available to sell.
选项是否正确？