Question:If `(1 xx 2 xx 3 xx 4...x n)`=n!,then (14!-13!-12!) is equal to : 

A `14 xx 12 xx (12!)` 

B `14 xx 12 xx (13!)` 

C `14 xx 13 xx (13!)` 

D `13 xx 12 xx (12!)` 

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