A bookseller has two display windows. She plans to display 3 new fiction books in the left window, and 3 new non-fiction books in the right window. Assuming she can put the three fiction books in any order, and separately, the three non-fiction books in any order, how many total configurations will there be for the two display windows? Choose the most appropriate option:	A) 24	B) 72	C) 44	D) 36	E) 20
Two displays books could be arranged n! # of total arrangements are combinations multiplied together,   3!*3! =6*6= 
<gadget id="calculator">6*6</gadget>
<output>36</output>
36   Answer is 36
<result>D</result>
A bookseller has two display windows. She plans to display 3 new fiction books in the left window, and 3 new non-fiction books in the right window. Assuming she can put the three fiction books in any order, and separately, the three non-fiction books in any order, how many total configurations will there be for the two display windows?