There are different 45 circles. What is the number of the greatest possible points with which the circles intersect?
Select the correct option
A) 1950	B) 2000	C) 1980	D) 1580	E) 2600
Maximum points of intersection between n different circles = n*(n - 1) = 45*44= 
<gadget id="calculator">45*44</gadget>
<output>1_980</output>
1980   Answer: 1980
<result>C</result>
There are different 45 circles. What is the number of the greatest possible points with which the circles intersect?