Easiest way to root Optimus l7?

Hi, am new to this whole thing.
Would like to know what is the easiest way to root my lg optimus l7
(LG-P705)

The software version is V10e.
It is running android 4.0.3.

I have tried various methods of rooting my phone, but none seem to work
(SuperOneClick, z4root)

Is there a easy method with minimal steps to rooting my android phone?

Thanks for your time in reading this, would really appreciate a response soon.