一名老师和两名男生两名女生站成一排照相,要求两名女生必须站在

一名老师和两名男生两名女生站成一排照相,要求两名女生必须站在一起且老师不站在两端,则不同站法的种数为        (  )

A8                  B12             C16              D24

答案

D

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