If a + b + c = 0, then the value of a^2bc + b^2ca + c^2ab is:

Answer: Option B

$$\begin{array}{rl}& \text{If }a+b+c=0,\\ & \text{then }\Rightarrow a^3+b^3+c^3=3abc\\ & =\frac{a^2}{bc}+\frac{b^2}{ca}+\frac{c^2}{ab}\\ & =\frac{a^3+b^3+c^3}{abc}\\ & =\frac{3abc}{abc}\\ & =3\end{array}$$