How to root Alcatel Fierce 4 (5056N) Marshmallow 6.0.1

I just bought a Alcatel Fierce 4, & I can't find anything on how to root it.
Metro Pcs Alcatel Fierce 4
Model: 5056N
Android version: Marshmallow 6.0.1
If anyone would kindly help me out & if possible give me a small walk through on how to do it I would be forever grateful.

Thanks in advance
-Joanna

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