If the three consecutive vertices of a parallelogram are (-2, -1), (1, 0) and (4, 3), then what are the coordinates of the fourth vertex?

If the three consecutive vertices of a parallelogram are (-2, -1), (1,

1.	If the three consecutive vertices of a parallelogram are (-2, -1), (1, 0) and (4, 3), then what are the coordinates of the fourth vertex?
A.	(1, 2)
B.	(1, 0)
C.	(0, 0)
D.	(1, -1)
Answer» B. (1, 0)