We have 4 people and 1 chairs. In how many ways chairs can be occupy?	Choose the correct option.
A) 72 B) 86 C) 24 D) 14 E) 20
no. of ways they can be occupy = 4*3*2*1= 
<gadget id="calculator">4*3*2*1</gadget>
<output>24</output>
24   Answer is 24
<result>C</result>
We have 4 people and 1 chairs. In how many ways chairs can be occupy?