Three female friendsthree male friends will be pictured in a advertising photo. If the photographer wants to line them up in one row, with menwomen alternating. How many possible arrangements may she chose? Select the correct option:	A) 40320	B) 1680	C) 1152	D) 576	E) 72
now any of the alternate 3 places can be filled by 3 male or female in 3!   similarily,   other 3 alternate places can be filled in 3!   hence required probability= 2*3!*3!=72   hence 72
<result>E</result>
Three female friendsthree male friends will be pictured in a advertising photo. If the photographer wants to line them up in one row, with menwomen alternating. How many possible arrangements may she chose?