Equation of Plane Passing through Three Points

Q. Given 3 points given by position vectors $\overline{a}=\hat{i}+\hat{j},\overline{b}=\hat{j}+\hat{k},\overline{c}=-\hat{i}-\hat{j}-\hat{k}$. Find the plane passing through these 3 points.

1. $\overline{r}.(\overline{i}-3\hat{j}+\hat{k})=-1$
2. $\overline{r}.(-\overline{i}+3\hat{j}-\hat{k})=1$
3. $\overline{r}.(\overline{i}-3\hat{j}+\hat{k})=2$
4. $\overline{r}.(-\overline{i}+3\hat{j}-\hat{k})=-2$