In a certain circle there are 9 points. What is the number of the triangles connecting 4 points of the 9 points? Options
A) 80  B) 96  C) 108  D) 126  E) 132

Rationale: imo : d here we have to select 4 points out of 9 points . order is not important so the answer will be 9 c 4 = 126 answer d
Answer: D