C24. When a device X is connected across $220\,\text{V}$, $50\,\text{Hz}$ alternating supply, the voltage leads the current by $\pi/6$. When a device Y is connected across the same supply, the current leads the voltage by $\pi/6$. Both devices are now connected in series across the same supply.

Let the two devices have the same resistance. The voltage across the series combination is $V$ and the current is $i$. Select the correct alternative: