Find the multiplicative inverse of the complex number $\;\sqrt{5} +3 \normalsize i\;$

Question

$(a)\;\normalsize \large\frac{\sqrt{5}}{14}- \normalsize \large\frac{3}{14} \normalsize i\qquad(b)\;\normalsize \large\frac{3}{14}- \normalsize \large\frac{\sqrt{5}}{14} \normalsize i\qquad(c)\;\normalsize \large\frac{\sqrt{3}}{14}- \normalsize \large\frac{5}{14} \normalsize i\qquad(d)\;\normalsize \large\frac{5}{14}- \normalsize \large\frac{\sqrt{3}}{14} \normalsize i$