Hurry! point h is the circumcenter of triangle jkl. which must be true?

A circumcentre is the centre of the circumcircle.  
The circumcircle of a triangle is the circle that passes through all three vertices.

Since all radii of a given circle are equal, we see that all the distances from H (circumcentre) to the vertices of the triangle are equal, namely
JH=KH=LH
Only one of the above answer choices is true.

I'm just guessing, but my answer would c. 0 to 300.

8doors on the second floor