Answer:
Determinant attribute
Step-by-step explanation:
Determinant attributes are the aspects of products that actually determine the buyer's final choice of service.
A determinant attribute does not have to be the most important or aspect of the product included but it is the attribute that the consumer uses to ultimately take a decision on getting the product. Therefore, determinant attributes are not the same for all consumers or products.
In this case, Angela considered all sporting goods stores to be roughly equivalent mostly, but she noticed that REI stores had an exceptional level of customer service. This attribute was very important to her and therefore it was determinant on his decision of evaluating sporting goods stores.
Thus, Customer service would be a determinant attribute for Angela.