Concept:Self-service gives customers direct access to products, allowing them to examine goods freely before purchasing.
Explanation:In self-service shops, customers move around and select items themselves instead of waiting for a sales attendant.
This directly helps them inspect quality, size, packaging, and expiry date before payment.
Impulse buying is a disadvantage to customers because it leads to unplanned spending.
Buying on credit is generally not part of self-service selling.
Lower prices may sometimes occur, but they are not guaranteed.
Thus, the clearest customer advantage is the chance to inspect goods at their own pace.
Answer:B. enables customers to inspect goods