阅读理解。阅读下列短文, 从给的四个选项 (A、B、C和D) 中, 选出最佳选项。
(2014·威海高考模拟)
A dentist’s office may not be everyone’s idea of a perfect holiday destination.But a growing number of Europeans are travelling abroad for medical treatment to save money，or maybe to combine a visit to the doctor with some sightseeing，creating a potential but fastgrowing market for traditional tour operators.
