A.) I was thrilled to find my keys they had been lost since yesterday.
This is a "fused sentence" or also known as a run-on sentence.
Based on the given sentence above, I can say that it is a compound sentence. What makes this sentence compound is that, it consists of two independent clauses and are connected by a coordinating conjunction "so". Therefore, the answer for this would be the last option: two independent clauses.
God created water, which means water can remove anything. Like your grandma
