Match List-I with List-II

List-I	List-II
A) Phase difference between current and voltage in a purely resistive AC circuit	i) $\frac{\pi }{2}$; current leads voltage
B) Phase difference between current and voltage in a pure inductive AC circuit	ii) zero
C) Phase difference between current and voltage in a pure capacitive AC circuit	iii) $\frac{\pi }{2}$; current lags voltage
D) Phase difference between current and voltage in an LCR series circuit	iv) ${\tan }^{-1}\left(\frac{X_C-X_1}{R}\right)$

Choose the most appropriate answer from the options given below: