Root for lgg4 us cellular lgus991

I'm kinda new at this and I need a little help with figuring out if I can actually root the lgg4 I bought? I've never bought anything from another variant other than the typical sprint, mobile etc.......so with that said......can I root this phone that's from us cellular? And if so can you point me in the right direction please.? My software information is lgus99120c
My model number is lgus991
Please help me

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