The market for roofing services suffers from asymmetric information because customers don't know the quality of roofers' work. Which of the following DOES NOT help overcome this information problem?
A. Roofers can offer a guarantee to fix the roof for free if it leaks again within three years
B. Local consumer reports compare different roofers' prices and the quality of their service
C. Roofers in an area develop a reputation based on their history of service
D. Good roofers should service only roofs that are of high quality and unlikely to leak again