In a circuit in which resistance, capacitance and inductance are in series, the impedance would be-

A. $$\frac{V}{{\sqrt {{R^2} + {{\left( {{X_L} - {X_C}} \right)}^2}} }}$$

B. $$\sqrt {{R^2} + {{\left( {{X_L} - {X_C}} \right)}^2}} $$

C. $$i\sqrt {{R^2} + {{\left( {{X_L} - {X_C}} \right)}^2}} $$

D. $$\frac{1}{{\sqrt {{R^2} + {{\left( {{X_L} - {X_C}} \right)}^2}} }}$$

Answer: Option B