單項選擇題

下列是一段關于按摩特點的對話，請根據中文提示，選擇合適的用語，補充對話。（）
——Chinese massage is accepted and has become more and more popolar in the world，why is so popular？
——Juse for it’s a______________________therapy.

A.safe，expensive，comfortable，harmful and non-side-effect therapy
B.safe，effective，comfortable，harmless and non-side-effect therapy
C.dangerous，effective，comfortable，harmless and non-side-effect therapy
D.safe，expensive，uncomfortable，harm and non-side-effect therapy

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