Find the modulus and argument of the complex number $\;\large\frac{1+2i}{1-3i}$

Question

$(a)\;\large\frac{1}{\sqrt{2}}\;and\;\large\frac{3 \pi}{4}\qquad(b)\;\large\frac{1}{\sqrt{2}}\;and\;\large\frac{5\pi}{4}\qquad(c)\;\large\frac{1}{\sqrt{2}}\;and\;\large\frac{7 \pi}{4}\qquad(d)\;0\;and\;\large\frac{3 \pi}{4}$