You will be given a passage, and your task is to generate a Yes/No question that is answerable based on the given passage.
Q: A chord of a circle is a straight line segment whose endpoints both lie on the circle. A secant line, or just secant, is the infinite line extension of a chord. More generally, a chord is a line segment joining two points on any curve, for instance an ellipse. A chord that passes through a circle's center point is the circle's diameter. Every diameter is a chord, but not every chord is a diameter.
A: 
is every diameter of a circle is a chord?