In how many different ways can the letters B, E, N, E, F, I, C, I, A, L be arranged?	Choose the most appropriate option
A) 10×9×8×7×6×5×3×2  B) 10×9×8×7×6×5×4×3  C) 8!  D) 9!  E) 10!
Number of ways of arranging BENEFICIAL = 10! / 2! * 2! = 10×9×8×7×6×5×3×2. Hence 10×9×8×7×6×5×3×210  / 2  * 2= 
<gadget id="calculator">10  / 2  * 2</gadget>
<output>10</output>
10×9×8×7×6×5×3×2. Hence 10×9×8×7×6×5×3×2
<result>A</result>
In how many different ways can the letters B, E, N, E, F, I, C, I, A, L be arranged?