Find the multiplicative inverse of $\;2 - 3 i$

Question

$(a)\;\large\frac{2}{13}+ i \large\frac{3}{13}\qquad(b)\;\large\frac{2}{13}+ i \large\frac{5}{13}\qquad(c)\;\large\frac{5}{13}+ i \large\frac{7}{13}\qquad(d)\;\large\frac{3}{13}+ i \large\frac{5}{13}$