There are 9 points marked on the circumference of a circle. How many hexagons can be formed by connecting 6 points of the 9 points?  Choose the correct answer.
A) 84 B) 86 C) 88 D) 90 E) 92
9C6=84   The answer is 84.
<result>A</result>
There are 9 points marked on the circumference of a circle. How many hexagons can be formed by connecting 6 points of the 9 points?