There are different 10 circles. What is the number of the greatest possible points with which the circles intersect?  Choose the correct answer.
A) 90	B) 100	C) 110	D) 180	E) 200
Maximum points of intersection between n different circles = n*(n - 1) = 10*9= 
<gadget id="calculator">10*9</gadget>
<output>90</output>
90   90nswer: 90
<result>A</result>
There are different 10 circles. What is the number of the greatest possible points with which the circles intersect?