Three elements having conductance G₁, G₂ and G₃ are connected in parallel. Their combined conductance will be

A. $$\frac{1}{{\frac{1}{{{{\text{G}}_1}}} + \frac{1}{{{{\text{G}}_2}}} + \frac{1}{{{{\text{G}}_3}}}}}$$

B. $$\frac{{{{\text{G}}_1}{{\text{G}}_2} + {{\text{G}}_2}{{\text{G}}_3} + {{\text{G}}_3}{{\text{G}}_1}}}{{{{\text{G}}_1} + {{\text{G}}_2} + {{\text{G}}_3}}}$$

C. $$\frac{1}{{{{\text{G}}_1} + {{\text{G}}_2} + {{\text{G}}_3}}}$$

D. $${{{\text{G}}_1} + {{\text{G}}_2} + {{\text{G}}_3}}$$

Answer: Option D