It can be only 1
* * * * *
Infinitely many concentric circles can be drawn.
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Only one which is a tangent to that circle.
Always one for sure, and never more than one.
A line tyhat's tangent to a circle intersects the circle in exactly one single point. The radius drawn to that point is perpendicular to the tangent.
No points can be drawn from a point.
Infinite number.