Hey There!!
I think the answer to this is: The 3 one is. A Relative. The 4 one is. A noun. And, The last one is. adverbial.
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The answer is Ravensbruck
A nervous woman moved towards the door.
The correct answer to this question is letter ". C) The comma attempts to separate a compound predicate."
The first part of the sentence is the predicate, so it's not trying to separate a subject.
"Then skylights that were made of aluminum siding" isn't a sentence, so it's not an independent clause."
I would recommend maybe getting a job at a grocery store. You will mostly just stock shelves which means little social interaction. Other places like libraries would be good for the too. If you want to work at a restaurant try being a dishwasher so you don’t interact with customers.