Answer:
A. Producers can figure out what consumers are willing to pay based
on what they buy.
Step-by-step explanation:
For example, a fashion brand Zara introduces new line of female apparel for autumn and winter. In addition to well-selling items like pullovers and chino pants, this line includes closed ponchos. Though, closed ponchos became trendy in high fashion this season, producer can see that they do not perform well with their consumers. The poncho sales turned out to be very limited. For the next autumn and winter season, Zara conducts a focus group research and finds out that open ponchos are popular. Thus, Zara introduces a line of open ponchos that ultimately perform very well on market.