The area of the triangle with vertices at (a, b + c), (b, c + a) and (c, a + b) is

The area of the triangle with vertices at (a, b + c), (b, c + a) and (

1.	The area of the triangle with vertices at (a, b + c), (b, c + a) and (c, a + b) is
A.	0
B.	a – b - c
C.	ab + bc + ca
D.	a + b + c
Answer» B. a – b - c