Answer:
she was talk to a threpist or she is talk to threpist
 
        
                    
             
        
        
        
Even though you didn't give us the fragment with the comma slice, it isn't really necessary here as we can answer just based on these 4 options here. All options apart from the second one are correct - only the second option doesn't fix the mistake of the comma splice, whereas the other options do but connecting the sentences properly.
        
                    
             
        
        
        
The answer is thesis I’m pretty sure
        
             
        
        
        
The correct answer is D. noun clause.
The clause <em>Maria was not going to show up </em>cannot be independent because it depends on the first part of the sentence. What did Tony realize? - That Maria was not going to show up.
Since it doesn't describe a noun or a verb, it cannot be an adjective/adverb clause either.