"<span>c) Sally lives with her parents, although she could afford her own apartment" contains two sentences, separated by the connecting word "although" which sets off the second sentence. </span>
I'm going to say B, because she felt to smart for them, office classes tend to be advanced.
Three witches meet Macbeth and Banquo on the heath (marshes) as the men return from battle
Sure hope this helps oyu.