If the centroid of the triangle formed by the points (a, b), (b, c) and (c, a) is at the origin, then a3 + b3 + c3 =
A abc
B 0
C a + b + c
D 3 abc
good question
If the centroid of the triangle formed by the points (a, b), (b, c) and (c, a) is at the origin, then a3 + b3 + c3 =
A abc
B 0
C a + b + c
D 3 abc