In a certain circle there are 9 points. What is the number of the triangles connecting 4 points of the 9 points?	Choose the correct choice:
A) 80 B) 96 C) 108 D) 126 E) 132
IMO : D   HERE we have to select 4 points out of 9 points. Order is not important   So the answer will be 9c4 = 126   Answer 126
<result>D</result>
In a certain circle there are 9 points. What is the number of the triangles connecting 4 points of the 9 points?