O is center of a circle and P and Q are the points on the circle. If angle POQ = \[180{}^\circ ,\]PQ is _______ of the circle.

O is center of a circle and P and Q are the points on the circle. If a

1.	O is center of a circle and P and Q are the points on the circle. If angle POQ = \[180{}^\circ ,\]PQ is _______ of the circle.
A.	Radius
B.	Diameter
C.	Chord
D.	All of these
E.	None of these
Answer» C. Chord