Which of the following can turn customers’ attention into real interest?
A、Listing the product's main features.
B、Describing the benefits of a product
C、Selling a product at a great discount.
D、Offering free samples through a link
4.In each of the following groups of words, there are four underlined letters or letter combinations marked A, B, C and D. Compare the underlined parts and identify the one that is different from the others in pronunciation.