In how many ways can nine different rings be worn on four fingers of one hand?	Pick.
A) 10 B) 129 C) 135 D) 126 E) 182
Required number of ways = ways of selecting 4 objects out of 9 given objects   = 9C4 = 9*8*7*6/24= 
<gadget id="calculator">9*8*7*6/24</gadget>
<output>126</output>
126   Answer 126
<result>D</result>
In how many ways can nine different rings be worn on four fingers of one hand?