Power consumed by a balanced 3-phase, 3 - wire load is measured by two wattmeter method. The first wattmeter reads twice that of the second. Then what will be the load impedance angle in radian?

A

$$\left(\frac{\pi}{6}\right)$$

B

$$\left(\frac{\pi}{3}\right)$$

C

$$\left(\frac{\pi}{2}\right)$$

D

$$\left(\frac{\pi}{4}\right)$$