P and Q are fixed points and X is a variable point which moves so that angle PXQ = 45o. What is the locus of x?
-
A.
A pair of straight lines parallel to PQ -
B.
The perpendicular bisector of PQ -
C.
An arc of a circle passing through P and Q -
D.
A circle with diameter PQ -
E.
The bisector of angle PXQ