The collection of all the points in a plane, which are at a fixed distance from a fixed point in the plane, is called __________

The collection of all the points in a plane, which are at a fixed dis

1.	The collection of all the points in a plane, which are at a fixed distance from a fixed point in the plane, is called __________
A.	square
B.	triangle
C.	rectangle
D.	circle
Answer» E.