细节题。由题干定位至第五段。根据末句中的“many Japanese couples，when polled，describe their marriage as a love match even if it was arranged．”可知，实际包办婚姻的数字多于统计结果，[D]符合文意，故为答案。文章没有提到包办婚姻的人数大幅增加，[A]为过度推断；第二段末句提到“The Western ren'ai kekkon，or love marriage，became popular；Japanese began picking their own、mates by dating and falling in love．”，但这是二战后的情况，并非现在的情况，排除[B]；第五段首句指出“Many young Japanese now date in their early twenties，but with no thought of marriage．”，这只是指出一个现象，并非统计数字不准确的原因，排除[c]。