Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to determine whether a perfume is authentic [title] Know the seller. [step] Most counterfeit perfume purchases can be avoided by going to a reputable seller. There are a variety of outlets for perfume, and it's important to understand the benefits and dangers of each.

Ending1: [substeps] Department stores are always the safest way to buy perfume, as you have the advantage of being able to closely examine the bottle in its packaging and talking to the retail staff. This allows you to approach the staff if it's possibly a fake, and you are able to return the perfume if it's not authentic. Ending2: Some of the counterfeits have the option of tricking or defrauding sellers, although some sellers will give good bids. Inspect any counterfeit perfume at a major retail chain and see if it seems visually appealing to you. Ending3: [substeps] Beauty supply stores provide samples of a brand new perfume that gives the recipient a fragrance that the seller can't replicate. A good seller will offer the product for free. Ending4: While most sellers will agree to provide you with genuine fragrances, don't assume they will lie about what fragrances they have. Many sellers are unwilling to disclose everything about a product, even though their own distaste for the fragrances is questionable.

Answer format: ending1/ending2/ending3/ending4