If the vertices of a triangle ABC are A ( – 4, – 1), B (1, 2) and C (4, – 3), then the coordinates of the circumcentre of the triangle are,

• A

  (1/3, – 2/3) 

• B

  (0, – 4)

• C

  (0, – 2) 

• D

  (– 3/2, 1/2)