Law / Polish Citizenship for a foreigner whose parents was born in Poland [174]

After reading all these posts I'm confused.

Can someone please clarify if I DO qualify for Polish Citizenship through my grandmother?

Facts: My Grandmother was born in Nur, Poland, 1912. She married my Polish American grandfather in POLAND in 1935 (he was born in America - but went back to Poland, married her, came BACK to America, then sent for her) She came over to America for the first time in 1936/1937 through Philadelphia to meet up with my grandfather.

Does this mean I qualify? And what exactly do I qualify for: just a passport or passport and citizenship?

If so, what do need to do next? Thanks in advance!