Chau's request that customers write reviews of her manicures on a website for local businesses is not an example of a seller providing quality signals.
A manicure is a hand beauty treatment. Your nails will be filed, shaped, and filed.Then your cuticles will be pushed back, cleaned, and your hands will be massaged.
During a manicure, the free edge is filed and shaped, and any dead tissue is pushed back and clipped (using a cuticle pusher and cuticle nippers) (but limited to the cuticle and hangnails), treatments with various liquids, hand massage, and fingernail polish application.
Hence, the correct answer is "A" option.
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