Which is the independent clause in this sentence? because patricia does not know french, she can't study in france. patricia does not know french because because patricia does not know french she can’t study in france

An independent clause is a set of words that can hold on its own as a sentence. It has a subject, verb and complete thought, as most would say. A dependent clause on the other hand cannot stand on its own. 

The answer to this is "She can't study in France.". 

Patricia does not know French is not the complete clause, Because Patricia does not know French is an dependent clause easily identified because it starts with BECAUSE and of course BECAUSE is not a clause, it is a subordinating conjunction.