Answer: Option 'D' is not true .
Explanation:
Since we have given that
If two angles are vertical angles, then
a) The angles must be congruent .
B) The angles must share a common vertex.
C) The angles must be lie in the same plane.
But the angles do not share a common side, because they can't be adjacent angles, as shown in the figure.
Hence, Option 'D' is not true .