B$.$ Can you help me with the steps for finding the vectors?Refer to Figure $2.$

Fig P$2.$ Balanced $3-$phase circuit.

a$)$ Calculate the load impedance, $\frac{?}{\text{b}\text{a}\text{r}}(Z)=R_A+j{x}_{LA}=55+j55$~~$78+45$

b$)$ Determine the Current Vectors, $\frac{?}{\text{b}\text{a}\text{r}}(I{)}_A\frac{,}{b}ar(I{)}_B\frac{,}{b}ar(I{)}_C\{\begin{array}{cc}\frac{?}{\text{b}\text{a}\text{r}}& (I{)}_A=1\mathrm{.}54+75A_{RMS}\\ \frac{?}{\text{b}\text{a}\text{r}}& (I{)}_B=1\mathrm{.}54-45A_{RMS}\\ \frac{?}{\text{b}\text{a}\text{r}}& (I{)}_C=1\mathrm{.}54-165A_{RMS}\end{array}$