Which of the Following Explains the Reason Why the Quality

Which of the following explains the reason why the quality of services can vary more than the quality of goods?

A)  Producers of services have procedures to prevent, identify and correct defects.
B)  Most services are human performances and often customized to the needs of the buyer.
C)  Producers of goods typically customize products to the needs of the buyer.
D)  Unlike services, customers are more likely to purchase defective products.