Six children, three boys and three girls, sit in a row on a park bench. How many arrangements of children are possible if no boy can sit on either end of the bench? Indicate all possible values.
A.46,656
B.38,880
C.1,256
D.144
E.38
我的答案:
Six children, three boys and three girls, sit in a row on a park bench. How many arrangements of children are possible if no boy can sit on either end of the bench?