The number of distinct real values of $$\lambda$$, for which the vectors $$-\lambda^2 \hat{i} + \hat{j} + \hat{k}, \hat{i} - \lambda^2 \hat{j} + \hat{k}$$ and $$\hat{i} + \hat{j} - \lambda^2 \hat{k}$$ are coplanar, is

A

zero

B

one

C

two

D

three