An organization’s core competency is in the service component of a product-service package, and customers have praised their ability to quickly resolve problems. If most of these problems are product quality issues, the best way to improve this supply chain would be to
选项：

A:replace the process value supply chain partners who have poor quality.
B:build or purchase the capabilities to better influence the demand channel.
C:replace the value delivery supply chain partners who have poor quality.
D:build or purchase the capabilities to produce the goods of poor quality.